I think its the awkward position of wanting to appeal to old fans while having a different show that has its own merits. So far there have been two little treats that reward BB watchers but I agree it's yet to find its feet. Laughs and/or drama is very few and far between and the first three episodes mostly establish what the character of Jimmy is like at this point in time and the people around him.
I'm sticking around because I'm still interested in seeing how he changes and I trust that it's building and will have more punch to it soon enough.