Let me just summarize this in a few key statements that will hopefully turn you away from this show before it's to late.
cowboy hats on bad cgi robots pointless characters backasswards plot "development" more pointless characters
An earlier review compared this to Trigun? Well if you mean this show had a few cowboy hats, and that Trigun is a epic (and extremely entertaining) space western than yes...they have that in common (save the fact that Burst Angel is absolutely terrible).
The only thing this anime had going for it was half a chub, and in all fairness...we deserve better than that. Do yourself a favor and steer clear my friends...if you really want a treat...go watch Trigun.