I had the bons on my Trek 520. They started to lose pea-size chips from the periphery, exposing the threads. I replaceed them with another set because they seemed to be good rollers and had been relatively flat resistant for about 3000 miles. The second set blew up - well, the rear did anyway.

Disgusted, I went with Armadillo 28's and have never gone back or had to change out a flat. I have 1.5" Army's on a roadified MTB for commuting, and 23mm Army's on an old school road bike.

I agree that you won't set any speed records, but I hate flats. As to difficulty in mounting them: I think it depends on the rim. I found the Bons to be a real wrestling match, but the Army's are very easy on the MTB and reasonably easy on the 520 and the roadie.

Another advantage to Armadillos is that you can run them almost flat (depending on size), if you ride a crushed rock bike trail or something. Pump 'em up again when you reach the other end.