Wilson Audio WATT/PUPPY or Gershman Grand Avant Garde?

As I said before, you cannot go wrong with either. Neither speaker will overwhelm your room. I had a WP 7 and then the Sashas in my room which is 16 x 20 x 9 and neither overwhelmed at all. In fact, I now have the Alexia 2s in that same space.  While I get the feeling that the Alexias would show a bit more muscle in a larger space (but I'm not complaining), I can assure you that I had no such feeling with the WP.

15 x 30 is a pretty good sized room. A lot of speakers should work in there.

Oz

Great.

Both Gershman AG and Wilson Watt/Puppy became available within driving range from where I live. I'll make a decision by the end of the week.
Again, thanks for all input.

I bought Gershman Grande Avant Grade.
I appears to be power hungry.
To crank up, I need to turn the volume to over 12 o'clock on my 100w, 125w, and 150w amps.
I don't have such wow feeling that I had with Wilson Watt/Puppy a long time ago at audio show. Also, its sound stage and image is not as good as Diva. It lacks liveliness too. 
However, it still sounds better than my Harbeth 7ES-3 and Tyler Linbrook signature. Anyway, it has to be since it costs 2~3 times retail.
I could have gone for Wilson Watt/Puppy 5 used for less price, but due to its size and the need for professional setup, I chose Gershman. It is quite light and I have no problem of carrying it by myself.
Even though I cannot say that I am 100% satisfied, I will stick to Gershman at least for a while (a couple of years) and enjoy the music.
Again, thanks for all your input.

Hi. My room in feet 8.5W/15L/9H, the Grand Avant Garde could play nicely in my room? Thanks for advice.