Eh, it's okay.
In its more inspired moments it's really funny. The rest of the time it's painfully generic and not even close to something like How I Met Your Mother.
The main problem is that the show is frequetly laughing at its characters rather than with them. I caught the premiere this year and just hated it. "Look! The nerd's fucking a robot! And his dick's stuck!" Really sophomoric and not funny at all. That's why I'm frustrated with the show. It's capable of being funny but too often they succumb to the impulse to trot out the witless dick joke. Don't get me wrong: I love dick jokes. But they have to do more than simply exist.