Great Free to Play Space Battle Game. Many say "World of Tanks in space", they say that because of the following things in common : Ships organised in 3 Factions and Tech Tree, 10 minute PvP Fights (in WoT it's 20 min), Synergy gain (in WoT Experience), Clans, and a Conquest map. That is not something original or specific only to World of Tanks, but because it is so popular, that may be a reason for many to say this is WoT in space, i personally don't know. But what i do know, is that this game is fast entertainment, as soon as you hit Battle, and fight, you just enjoy it.
✓PvE (Not in WoT :P)
✗Corporations(Clans) don't have their own page in game, when you search trough them you got no APPLY button, they don't have description so you could see who can you contact to get in, hell not even displaying the leader of the clan, so you could contact him. I really don't know why, but only way you can get in a corp, is by waiting for someone to recruit on global chat, and speak with them, no other means of contact, sad thing.
✗Full synergy ships, should get more credits and/or free synergy(like in WoT :D), at least 20% bonus, but they don't do anything special, only adding to your Fleet Strenght (a percentage based on fully synergysed ships that makes you get more synergy)
✗There is no method (or no easy to spot method) of contacting the Devs about the upper 2 problems, or whatever inovation you want to suggest. There is a Q@A section on the official forum... ALL CLOSED, yeah :|
✗The time to enter a battle either solo or with party, takes some time (~ 5 minutes) and there are some times when it can get to 10 minutes.
Other that that this is an entertaining game, which could get you 50 hours easy, BUT, any more than that and you can get bored, depends on you and your personality, but because of that Clan contacting problem, if you are not lucky to find yourself some mates, you will eventually get bored. Try getting some friends to play with you, I mean it's freaking free, what they got to loose :)
Why do i say it gets boring? It's kinda grindy and repetitive, so that might get you sooner or later, it's not so very complex, but it's fun for what it is. That 'repetitive stuff' is kinda entertaining and fun, but as i said, you won't probably play this a lot, except if you got friends to play with, or a clan with nice mates.
Even with it's flawss, i still recommend this game, because i consider it fun to play.