The Merge Software has always been my favorite client software. They used to spread a very nice variety of games. They seem to have dropped all the cheap games, and low buy-ins. There were no freerolls there the last time I looked.
Until maybe September of 2015 their reputation for paying out was terrible. It is still a bad reputation, but we have a thread here with actual first hand reports that show it is a whole lot better than it used to be. But still bottom of the pack.
It may be that they so ruined that reputation, and kept it bad for so long, that they will never, and can never recover. Rather than heap all the blame on Merge, remember that the UEGIA was what caused them the most grief. They dealt with that grief worse than any other site that kept on running.
They still have the best client software tho.