e-rewards program is a decent deal to sign up with.
The surveys do not take a long time to do. They always take me less than the estimated time.
The rewards are a ok, there could be more of a selection. Some of the rewards are a bit pricey if you find out what they would actually cost in real dollars. The blackout date after which points cannot be redeemed is a long period so I don't have a problem with that.
I feel I respond to the surveys quickly but have often encountered surveys that have already met their quota.
I have only redeemed my points once but did not incur and problems with receiving...