The demo reel on their site is what convinced me to check it out. Since I'm not very skilled at MR or Maxwell, I'm relying on what I see others do with them. So far I haven't seen anything very impressive with MR. I'll do a web search to see if I can find some high quality renders with MR to do a fair comparison.

My computer specs
Manufacturer: hp
model: a1750y
Processor: Intel Pentium D CPU 2.80GHz (x2)
Memory (RAM): 1022MB (NVIDIA GeForce 7500 LE 2x512)
System Type: 32-bit
Operating System: Windows Vista Home Premium
Maya 8.5 Unlimited (haven't installed SP1 yet)