Stealth was not that bad. Yes, cheesy, cliche, all of that. On the other hand, it's just a fun, entertaining, you get what you pay for kind of pure entertainment flick. My son and I watch it like once a year, and it always entertains, and that's all we look for from it.
As for the mecha you just showed, how can you complain about that dog Gundam thing? I've never seen it before, and I'm not a Gundam fan, but come on, it's a big robot dog! Not liking that is like not thinking K-9 on Doctor Who was awesome when you were a kid!
I think that all robot dogs are excused from the ugliest mecha comparison.