I for my part like SotS2 and, in contrast to Stronghold 3, see the money I spent for SotS2 as well spent money, not as some kind of mispurchase.
On the other hand I like(d) MoO 3 as well (at least after the problems had been patched away) and am a regular player of Dwarf Fortress, so, I for my part, like complicatd games
But I agree that some things in the game could have been solved in a better way....
for example the display of the Tech tree.
The fleets that get recalled after every mission, fortunately are among the things that will be fixed in a future patch, after which, AFAIK, you will be able to have your fleet complete consecutive missions, as long as the target stars are within range.
They are also trying to improve the performance of the game (the performance went down after the last huge feature patch last week, so it is most likely the result of not optimised new features that were added with this patch)
(ín terms of performance during battles, especially the newly added interceptor missiles seem to be a drain on processing power)
(the official games forum here: http://www.kerberos-productions.com/forum/index.php is a good source of information about ongoing developments and problems of the game )