I have very little experience with MMO's and I find Sentinel perfectly easy to play. Perhaps people are rushing through the content and finding themselves underlevel for the area they are in.
I enjoy them now and again between planets. They are no less than I was expecting, if I want the sort of gameplay people seem to be expecting from them I just fire up my Wii and play Rogue Squadron II.
The queue is barely moving now. I guess news has spread and now nobody wants to risk logging off.
I can see the fleets being full of people auto running into walls all day long today.
There's about 15 people on the Republic Fleet and just as many on the start planets on the server I play on and it has a 30 minute queue, that can't be right.