A few months ago, when Rewards was not converting for me and they were involved with all the cross-promoting stuff (primary factor) – I stared replacing CR and adding in RB … it was the first time I had added Referback to my sites in 6+ years …
Much to my surprise, every month I have received a payment each one increasing in size. They have remained in constant contact with me each month since being added and when ever I have a question its answered very quickly.
After Vegas Affiliates shafted me, and after Brightshare played games with ASUSA I had to look for an MGS alternative – IMO right now Referback is looking like they are the way to go.