Generally web based wallet's main issue is the utmost security and there are many ways of stealing your password, user name and keyword even your 2FA access to your web based wallet, in this sense Bitamp has done a tremendous job by making this one where no need to store your such valuable but risky information. That's why it is very much potential to me.
of course it is, Bitamp is doesn't like any other existing web wallet based on my perception, I think they have Brough to us a improvised system and it seems to be more secured than any other, that's the thing people like for their purpose.