The game design is great, but the fight mechanics and forced party structures are too formulaic. It's also getting irritating that most of the mechanics revolve around dodging AOE when people have to rely on laggy DF servers so they don't die.
Edit: Would also like to note the decline in logins in my FC as well. We had around 48 members, we have I've pared it down to about 38 now, the missing 10 had not logged in for 2 months. There is another 10-15 that rarely log in, like its not uncommon to not see them for more than a week or two between logins and these were friends from XI. Many of them spent time leveling crafting and looking forward to housing and were completely blindsided by the ridiculous pricing, and even more annoyed at the excuse for the pricing.