We just renewed for another year and upgraded our membership. I added up the tickets we received and the value of the tickets was almost $2,000. We've seen plays, Mercury games, concerts and more.
The only frustrating part is when the tickets are for a "hot" show, those are difficult to get. I have been trying now to get tickets to something for the past week and they keep taking it off and adding it back on as sold out. Not sure if they are adding more tickets and they go that fast or just teasing with a sold out show. I check Fillaseat probably 20-30 times daily and haven't had any luck.
Otherwise, extremely happy with our membership.