Well I got my Interactive R2D2 from the US. This thing is big. They have started to show up at TRU & retail for $179.99 CDN.
16" high by 9" wide & 21" in diameter.
Requires 4 AAA & 4 D size batteries.
It takes some time getting use to the commands. Once I got him going I was amazed at what it could do. Lets just say he beeps & clicks.

I had him moving around on the kitchen floor. He does move well on rugs but I have cats & the cat hairs I am afraid will get caught in the legs. Best to stay on a smooth surface. I had him going in circles & bumping off walls.
As for commands, he responds very well. I mention SW names, eg: Luke, C-3PO, Han, & he reponds with beeps & clicks. His head turns also. When I mention Darth Vader, he freaks out by screaming & starts playing the Imperial march. Jabba was a gas & Jawa, well he went balistic. Princess Leia was nice & he played a phrase in her voice. I had him playing the Cantina music but I cannot remember how I did that. I have to try more commands & find the hidden ones that I have heard about. He does shake his head back & forth as to saying no to certain things.
The commands must be done in a certain order for the proper responce. When I have more free time, I will keep you posted.
If others have this R2 unit, please post with your reviews on this very well made & fun Automaton.