I think its fair to say that Belle Rock is generally regarded as one of the better groups, though they have always had a reputation for slow support which has improved recently, though could continue to do so!
They lack the "personal" approach of some of the independent casinos IMO but I expect that with the larger companies and it's why I rarely play at "grouped" casinos. The Gift Wrap promo was poorly thought out, but they have built a generally good rep, and its definately good to see their support has improved. I think they benefitted frm the decision to decommission three brands at the start of this year. Four is plenty
Bet365 have also built up a great rep which is good for Playtech too