Roaches?

Hello, I was looking at ordering roaches from Dubia.com. Has anyone have great or bad experiences with them. I have a reptile store about 30 minutes away from me, I can get 20 roaches for for about 20 bucks. It’s about $15 and from Dubai. I can get 50 roaches for the same price. Eventually, I want to start a colony, but not yet. Any feedback is appreciated. Thank you