I don't like Blender, because of the interface. It's cumbersome and counter- intuitive at times. (At first I couldn't believe they use ctrl-W as the 'save' shortcut.. It's used in 99% of the software out there as the 'close' shortcut. You have no idea how many files I lost because of that.. Doing a random test, being unhappy with it, trying to close the file with ctr-W only to save it! :angry: )
I could also argue that it's lacking a number of features, and its UV mapping tools are terrible, but it's a free product so I can't really complain either.
That said I've grown used to it.
I first heard of it year ago and heard more complains that anything about it so I never tried it. But last year as Age building really took off we had not much choice so I tried it, got my way through a number of tutorials and the official documentation and within a couple weeks I was at ease with it, at least for what I need to do with it. (Though even today I still occasionaly get baffled by the odd interface 'feature').
I've never been 'deep' into 3d (just spend too much time in 2d), but I've tried pretty much every major 3D software through the years and I usually don't have much problems to learn software, and it's always usefull to know a new tool. Essentially most 3d softwares aren't really different, you just got to get past the interface and some of the workflow.
Beside as I've already said, sometime for some basic stuff it's just much quicker and less trouble to do it in one single software. Now there are things I could never see myself doing Blender, but for most stuff it's ok.