I can't give you any specific advice on that particular product. I looked at it when my laptop was giving me problems, but I needed something with active cooling, and that product doesn't. I'm also not at all convinced it could hold my laptop, which is very dense, despite being only 15" and thin. I think it looks like a pretty slick product with a good sized footprint for the benefits you get out of it. I currently have my laptop on a cooler sitting on top of a mac laptop box, and the difference with the height is enormous and wonderful.
Which is all to say, an external keyboard and mouse are not very expensive if you can find a few boxes to sit your computer on, but if $80 isn't a big deal for you, I think that will suit your needs quite well. Before you buy, check out the reviews for it and its wireless brother at newegg. Here
Newegg.com - Logitech Alto Cordless - Laptop Accessories and here
Newegg.com - Logitech Alto for notebook and MacBook Model Alto Portable Laptop Stand - Laptop Accessories. Good luck!