I would take it in a second.
With 1500 deposit and 3000 bonus couldn't you just chase line differences and reduced juice with other books betting the opposite side against this acct to extract a couple grand profit? It would take a very significant statistical anomaly to cause you to always lose on this "1500/3000 bonus acct". If that actually happened I would start betting with that shops lines with other books where I have access because they would appear to be exceedingly sharp. You may even hit a couple middles or win/pushes which would increase profit.