I too opted for the monthly subscription for pretty much the same reason.I want to see if they'll have enough live coverage and new features to warrant a larger subscription.
The coverage of the wsop has been pretty good so far, my only complaint if there is any, is that it seems like we are getting less coverage of final tables this year than we did last year when wsop.com was doing the streaming for free (if I remember correctly they only took 4 days off) this year we have to pay, and do get some extended coverage of some select tournaments but overall less tournaments and less final tables or so it seems.
I'm still glad for any live coverage what so ever, so I'd still recommend it to anyone who might be curious , but I hope if they continue with this service in years to come that they will produce more live content and show more of the various final table action at the wsop considering they are making people pay for it.