Their Discord representative is very nice and communicative; they've notified users of outages and when payment is being sent out, and will answer questions quickly. The site itself is easy to use and I've had no problems with offers crediting or being paid. Both credits and payment happen quickly and reliably. I'm brand new to GPT offerwalls but have had a good experience so far and plan to do more offers in the near future, especially a GameFly one I've got my eye on for when I eventually get a Switch!