I had it in mind to move back to an iMac, but finally couldn't resist. I got the base 6-core today from MacMall. I'm on it now, and it sure is snappy. I do my work on it (I work for myself from home so I spend a LOT of time in front of my computer), run VMWare Fusion (Win XP) which is half my work, a lot of emails (many thousands come in per year), processing work. Most of it isn't processor intensive, but a lot of it accesses disks. I also rip DVDs and BluRays for myself, and do some video editing with my son for fun, nothing professional. Yes it's more machine than I need. But it is fast. The internal drive is only 256GB on these stock machines, but as long as I use it smart, it should be fine. I will get a fast Thunderbolt external for some stuff. I'm planning to upgrade my RAM to at least 32GB so I can give the Virtual Machine some dedicated Ram and keep it snappy. But overall, after just a few hours of use, I'm very happy with it. It's silent, it's cool (well, the air coming out of the top is warm, which is nice on these chilly nights). I'm not going to post any benchmarks. Yeah I ran Black Magic Disk Speed Tester and Geekbench, but those are posted elsewhere. I just ran it to compare to my old Mac Pro, and it's quite a bit faster. But the unmeasurables, feeling fast and responsive, are excellent. I have a second Thunderbolt screen coming tomorrow (don't have a need for 4k) so I'll add pics tomorrow once I get my rig set up. Just my 2 cents.