yea i'm with you Bugsy, I think studio is overkill! But some people seem to like it.
Well first off, I worked at Sweetwater and helped Launch Maschine MK1 so I was there though the first few updates where strange things would go wrong. That's why I say I have seen LOTS of strange issues without the updates. Now you asked about my rig(s) when I first got Maschine MK1 (I got one free from NI for being involved in launching) I was running a PowerMac G5, and it ran really well. But that computer was getting dated fast, and I replaced it with a nice Dell and thats what I am still using but now that Dell is getting dated so I am planning a new rig probably within the next 6 months. I try and do a major upgrade very five years. The specs on my current rig that I run Maschine 2.1 on
Windows 8.1 64bit
Core 2 Quad 2.4 Q6600 CPU
8GB Ram
dual 600GB hard drives, one for OS and one for samples libraries/projects
So as you can see that is getting dated. I believe it is going to be replaced with an modern i7 and 32gb of ram with 3 3tb hard drives, but I am still planning that out. And decided if I get a Macbook pro or Windows box or whatever. (whole different discussion) Now my laptop is a Macbook with 2gb ram and it runs Maschine OK but not amazing.
Personally I try to be very minimal with gear, so I have stripped down my studio to just the basics, but I find sometimes I just need to do something a bit different to get the creative juices flowing again. And I am getting LOTS of scoring to video projects so the tools I need changed a bit. But Maschine is the ultimate creative tool, its so fast and fluid to get ideas down. I just love using it. Then once I have a cool track built I export it to Reason, or Ableton or Sonar, whatever and keep building the structure. Hope that helps.