Super fun but, simple AI kinda sucks sometimes, rushing into minefields and such. The biggest problem is ships needed premium currency to unlock extra slots. It gets crazy expensive fast, the end tier ships have 5 extra slot sections to unlock and each one costs 1000+! Then you have to unlock the extra slots for its support ships at 700+!! Youre given 3 every 3 hours so 12 in a day if youre really good at keeping track. It would take you 84 DAYS to save up the currency for one section.