I'm not saying the game is perfect and I don't completely agree with Famitsu's 38/40 rating, but neither do I agree with IGN's 5.3. To be honest I find that rating ridiculous. I wasn't in the least interested in the game before it came out, the videos didn't look appealing and nothing I read seemed to indicate a better than mediocre game. In the end I bought it because of overwhelming positive comments over at Neogaf and Gamefaqs. And the fact is I'm enjoying this game a lot.
The control in battle is limited, that's true, but it's not like your units do whatever they want. You give them orders and they follow them. You can influence the orders you can give by changing formations or units and the amount of AP and HP play a role as well. Anyway, I like the battle system, it's fast and fun.
It would be a shame if people were to avoid this game because of negative reviews. If possible, you should try it out. Maybe rent it and see for yourself it you like it or not. It's probably not for anybody, but chances are you'll like it if you like playing RPGs.