Pro: These roller shades are super easy to cut down to size yourself, without any special tools and the edge looks finished, not like a home job. And they were inexpensive.
Cons: The measurements for installation can be tricky. It took a few tries to get it right. I would call this more room darkening, not "blackout". Light does still come in from the top and sides. The shade tends to roll up cooked. It could use a little handle or pull tab.

All in all, I do not regret my purchase, but it's just ok. But it does the trick for now.