Chameleon Submitter is hands down...THE BEST SUBMITTER.
Others can make that claim, but Chameleon provides tmuch more in the way of traffic...on a consistant basis. TGP and MGP traffic.
The database is updated AT LEAST once per week. Definitely can't complain there. I hate managing databases.
The thumbnailer is a god send. Two seconds and you've got 70+ different thumbnail sizes to put to use. I even use this feature for my non chameleon submits.
If you're considering submitting galleries...
Chameleon Submitter is the tool you want.