I swear by Intel graphics, first and foremost because their drivers upstream are open source and most reliable compared to the open source nvidia or amd hacks. My desktop mainly runs OpenBSD, so proprietary drivers aren't even available for me, and I wouldn't like to use them anyway (I have terrible experiences from using these on Linux in the past).
And yes I care about low power consumption and (more importantly) silence. Currently I run three PCs, all of which are fanless. And all have intel graphics. Small size is a plus (all three computers are on a smallish desk), although I'm annoyed by the fact that most slim or mini-itx cases won't take two or three 2.5" drives. Come on, they're small, and you could make a reasonably small case with room for more than one disk. But no, it's either a tiny case with one disk, or a big box with room for ten disks...
Oh well.
My most powerful PC at the moment is a Shuttle DS57U7, with Broadwell Core i7-5500U (HD Graphics 5500):
http://dmesgd.nycbug.org/index.cgi?action=dmesgd&do=view&id=2809 I just hate it when lazy developers discriminate against intel graphics chips under the false pretense that they lack the power or features required for gaming.
Am I satisfied? Well, more or less. Thank them for the open source drivers -- no other vendor comes close to providing this. I believe the performance is as good as it will get given the power budget (15W TDP CPU). Oh, sometimes I do wish that I had a little bit more graphics performance. But with Intel graphics I *could* get plenty more performance, if I allowed for a higher power consumption and went for a desktop CPU.
The only thing that annoys me is that Intel tends to put weaker graphics in the i3 & i5 CPUs and most performance in i7. Of course it makes sense, in a way, but most people who spend the money on something as powerful as an i7 would also spend the money on a powerful discrete graphics chip (if they care about graphics performance at all). Whereas the people running i3s or i5s are often looking for cheaper hardware and/or lower power consumption and therefore are more likely to benefit from having a good integrated GPU, so they don't need to spend more money (and watts) for the graphics performance.