This last month I ordered some polycarbonate from thier website. Overall it has worked out pretty well.
The poly arrived in acceptable shape with little to no damage.
The crating job was above average.
I spoke to only one person by email and he was polite and helpful.
Thier web sit needs full a redesign.
No input into shipping.
They chose to ship Roadway, who in my expierence is heavy and slow. (Although the driver who actually came here was polite and nice)
The posted lead time is as prepared to ship. I was at 7 buisness days (OK I think for custom crating). It ended up taking 11 buiness days to arrive.
If I need more poly I would certainly consider them, but I'd try to get more input into shippers.