SPEED's commentary is indeed very poor. It's especially bad for someone like mysel who is depending on them to figure out exactly what's going on. I wish BBC America would air F1 
You're new to F1 and you know that SPEED's commentary is very poor? I find commentary to be just that, commentary and often times it can be wrong or feel like filler, but there are some very good points made by the team, Hobbs brings a hell of a lot of historical info, and Matchett is a keen eyed technical commentator. I can't comment on what they are as compared to a BBC crew and based on feedback on this forum I'd have no doubt that they're excellent, but I find it odd that you've outgrown them or made your decision already.
EDIT: I wanted to mention, when you listen to commentators you sometimes pick up very interesting things that are part of reason they've got the commentating job. Hobbs last year mentioned that as a boy he attended the first Silverstone GP in the 50's.