It's the 6th release of the AAT, I think. I found the blue and steel coloring odd, so getting back to gritty is cool. Sucks if you were building an army of the blue patterned ones and wanted more of those. I only have the 30th anni version, and this one looks more compatible with it.
I only have an incomplete AT-AP (stripped of everthing but 2 main legs and top gun) I got used for a buck and it's legs don't sit evenly (I assume it's a bad example). Not sure if it's worth getting unless I want to recreate the battle on Upsidedownsis.
$25 for a swamp speeder? I dunno, could get a clone with a big grub for that price!
(Though the hard part is finding ROTS clone who can sit down to operate it. (Come back, quick draws, all is forgiven! Well, maybe not all.)
Droid fighters/bombers never did anything for me.