I reached RA5 rather quickly compared to reaching the end level in other games. The biggest issue with STO is that it's only been in development for 2 years! Most MMOs are in development for 4-6 years.
Originally it was supposed to be a 50 level game, but they scaled that back for an early launch, and those 5 extra levels will get added later this year.
I didn't like the set up of sector space, it's a pain to navigate, and the over instancing is a draw back, imo.
While leveling, there was not enough missions to level, where I was forced to do repeative missions or PvP to level. Once I reached RA, there was not enough end game content to do, at the time only PvP, until The Infected was added, and now The Cure. Outside of doing those two missions and PvP there is nothing else to do.
Now, I have canceled my subscription, but what was the final nail in the coffin for that was with this last update where they added more things to the C-Store than they did to the game itself. When I am already paying a subscription, I should not also have to pay for extras, even if they are novelty items like bridges. I should also not have to pay for retraining my captain. (Yes, I know that you get one with each rank up, and I have heard you can use credits from in game, though I can not confirm that last part)The point is, don't have a subscription and then throw in extras to try and get more money from people.