HomeWorX seems to have the fewest bugs. The HW-150 is comparable to the iView 3500, and the HW-180 is comparable to the iView 3200. But the remotes all suck compared to the 3500's remote.
eMatic went through a phase with bad firmware like iView did, but the newest ones are reportedly OK. Model number is AT103B. Ematic doesn't do firmware updates though, so if you get one make sure you can return it in case you get one of the buggy ones.
If you get an iView 3200, you can use the 3500's remote with it; you don't have to use the sucky 3200 remote. (That's not true of the HW-150 and HW-180 though - each of those needs its own remote!)