Great? No. Usable and functional, for most people? Certainly. Far more so than the abortion known as OS2, in the many flavours I was cursed to work with. Win31 was a bridge, from DOS to a fully GUI operating system. Any technological transition will have things about it, that people don't like, but it was a huge improvement over the various menu systems people had been using, up until then.
If you'd wanted to make a point then you should have brought up the original Win95, that missed all public release dates in Canada (except the company I was working for), or WinME
compared to the macs at the time it was still primative