Yep, I used to be this enthusiastic about Apple too. Those were the good ol' days. I wish I could find a compelling reason to feel that enthusiasm again. I have the iPad Air 2 and the 6 Plus and will be sticking with those despite the glitches (I have invested a lot in the ecosystem). And with Windows, yes, you get what you pay for. With Apple these days, you DON'T get what you pay for. That's the problem.
Everyone's experience is different, I guess. I'm just sorry to see you leave over THIS, which seems avoidable.
I've had a very different experience. My first Mac was bought back in 1994 when Sears sold Performa-series Macs. This was back in the Jobs interregnum (ya know, the "dark days"?) when just about every other article about Apple referred to them as "beleaguered" or "doomed". There was a certain cultural aspect to being a Mac user then (System 7 was my first, and I was connected at the hip to the David Pogue Missing Manual series for years). My Mac experience was limited (I couldn't play the games my friends on Windows did) and I had problems they couldn't relate to (extension conflicts, anyone?)
All in all, when Steve came back to the company and released the Unix-based OS X, I was cautiously optimistic at first. The first 6-8 months of reviews decided it for me. I would be giving OS X a try. Problem was, I had last bought a Power Mac 8600/250 tower designed for video editing, which wasn't officially supported by Apple for OS X. I found a hack online that made OS X work like a dream for me. So, from late 2001, with 10.1.5, I had a much more enjoyable Mac experience. No extensions to manage? Sign me up! True preemptive multitasking? Yes, please. Better OpenGL and OpenAL support? Why not?
I was, however, frozen in that config until 2011, when my 14-year old Mac finally gave up the ghost. (Good run, right?) Hell, yeah, especially when I was still using it as my daily driver, email, browsing, working with Adobe Illustrator. So, my beautiful wife got me the late 2012 21.5" iMac I'm typing on now. It was running Mountain Lion. I went from that, to Mavericks in 2013, and to Yosemite this past year.
Maybe it's a combination of my system configuration and my programs. They are very sensitive to drops in performance (mostly 3D games, which I run almost daily now). I had one problem while running Mavericks that detracted from my fun (if you look back in my MR post history, it's all described here). I isolated it to something installed by a couple of non-stock non-Apple apps (no, there weren't Microsoft either). I installed Mavericks onto a thumb drive and did a clean install. It solve my performance problem.
Yosemite has improved OpenGL 4.x performance, which is a must for me. I've not had the wi-fi problems others have had. I don't hate flat icons.
So, maybe the missing component for me is that I have no Leopard and Snow Leopard experience to relate it to. I just don't know how GOOD it was then?
I don't know. Thoughts?