Not less than Jerboa from my experience, very few crushes... There is a bug that if you refresh a thread twice in a row it crashes, but other than that easily avoidable big it hasn't crashed for me once in either 0.0.6 or 0.0.8.
My problem with it is than when leaving the app for a split second it doesn't remember where I was the last time. This is especially frustrating when commenting. Infinity doesn't have this problem. Actually it's the only app that doesn't have this problem (except maybe sync)
Also I've always always used Infinity so I'm pretty used to it although I have no problems adjusting to other apps.