I bought a 15" pretty fully loaded (2.9 GHz, Radeon Pro 460, 1 TB), so I guess the answer is yes.
It just arrived 5 days ago, so I haven't used it that much. It replaces my 2012 15" rMBP, which I have used extensively for over 4 years. I take my laptop back and forth to work and with me when I travel. At home and work it is hooked up to 30" monitors via a TB dock. At each place I have external USB 3 backup drives connected to the dock.
I bought the previous one very loaded too (2.6 GHz, 768 GB). The difference in price between the two was very small. I do work for a University, so get higher education prices. The old one still has lots of life left in it, though I'm not sure what I will do with it yet. My original MacBook (late 2008 unibody) is still in use by one of my grad students, as is my 2011 MBP. They are expensive, but they last a long time.
I too was a little irritated by the loss of MagSafe the switch to USB C/TB 3, and the lack of a video ports and the SD memory card slot. However, even after only a few days I can see that I will adjust quickly.
The loss of of HDMI is not that big a deal since most places I go require a dongle to plug into an old SVGSA-style connector. Besides, I have started making presentations with my iPhone or iPad.
The lack of a USB A port not nearly as big a deal in practice as I thought it would be. Most of my devices are connected to the TB dock or USB Hub attached to the dock. My monitor is attached via the dock. I did have to buy a TB3 to TB adapter (see below), but that wasn't really a big deal. I bought some USB A to USB C adapters on A**n for a few dollars for use when I travel. I bought some USB C to USB 3.0 micro cables for the external hard drives and flash card readers I use when I travel, and they seem to work fine and will replace the cables I carry around anyway. For good measure when traveling I bought 3 port 3.0 hub with builtin Ethernet that has a built-in USB C wire. All of these cables and adapters cost less than $35. My camera uses CF and SD cards, so I need a flash reader anyway. Honestly, I don't think I will have to carry that much extra stuff with me when I travel.
The keyboard is different, but I think I will get used to it. I do miss the escape key, as I do a lot of editing in vim, but I use ctrl-[ a lot since I started on an old DEC keyboard that didn't have one.
The touchbar is not that great an advance, at least not so far. To use it you have to take eyes off the screen, and I don't find it that helpful. Also, a lot of my use is with the laptop hooked up to a big external monitor and an ergonomic keyboard. Being able to login via a fingerprint is nice.
The screen is absolutely gorgeous. The color, brightness, etc is fantastic. As I said, I use it a lot on external monitors, so that will go to waste a lot of the time. However, when traveling I often sort through pictures on it, and I think it will be a pleasure to use for that. I also sometimes use it on my lap while at home or at meetings, and it will be nice for that.
Performance seems, subjectively, better than my previous one. I guess this is a combination of faster SSD, faster GPU, faster processor, and faster memory. There could also be some confirmation bias involved. Apple always says they sell experience and not specifications, and from what I have experience so far I think it is enough improved that it was worth the upgrade. I haven't used it on battery enough to evaluate the battery life. However, it does seem better than my previous one (which was a real battery hog with the GPU on). However, when I need long battery life I use my iPad Pro anyway.
I can feel the difference in size and weight. This isn't a big deal, as I typically carry it in a pretty heavy backpack that is like my manpurse. However, when I do travel light I can see that size and weight reduction will be nice. As for the loss of the Magsafe connector, I have my fingers crossed that I don't trip on a cord, or that the cord comes out if (when) I do. One good thing about that is that there is chance that I won't have to buy a charger from Apple.
As mentioned above, I take my laptop back and forth between work and have it connected to a TB1 dock at both places. I bought a TB3 to TB adapter, and it works just fine with my dock. So, while the extra $100 for 2 adapters does increase the price a bit, it doesn't really affect how things work. In addition, the old-style TB ports never had a very secure connection and the USB-C/TB3 port seems to be an improvement in that regard. If I had a TB3 dock that could power the laptop then I would only have to connect one cable when I switch locations, which is a minor improvement.
In summary, I did buy one and don't regret that I did. Change is always painful, but I think the changes, especially in a year or so when there are more adapters/docks, etc, available, will be for the better. Sure I wish that it had a Kaby Lake processor in it, but my guess is that it would be a barely perceptible difference, which is the reason I kept my 15" rMBP for 4+ years.