On-one external bearing track crankset

Sorry to dig up an old thread. I'm in the market for some new cranks and was wondering if people had any more opinions on these. Should i wait for something nicer second hand? cheers

I'm using one of these right now on my Pompino, and it's held up just fine for six months of daily commuting, BUT: the left arm retaining bolt fell out about two days after installation. Replaced it with one of these and I've had no problems. I also got the shell faced, which probably helps.