Build quality looks a bit rough to my eyes, and it looks overly plasticky in the images. I think I'd rather look at something like Deepsky Instruments units than the GSO variants - I suspect optically they'll be better, and build quality will easily surpass the GSO/Astro Tech variants too. Yes, it'll be a bit more pricier, but not by a lot - I think the 10" Astro Tech units are going to ship for around US $4600 or so, about 1-2000 cheaper than the Deepsky Instrument units.
http://www.deepskyinstruments.com/home.htm
Dave