I tried doing the grow bags last summer on our back deck. I didn't have much luck at all, they kept drying out even though I would water them every day. I had the plastic gro bags, and every time I would water them, the water would pour out the holes in the sides. I didn't get many strawberries either. Just my 2cents.

I found something similar on Raintree but it has a built-in watering system. I have thought to try it.

Here is a link that might be useful: Strawberry Growing System