Freesat - Angelcomms

Has anyone had any dealings with this company? I am thinking of using them to get free to air installed. I've emailed a few different companies but this was the only one who responded to me. I tried doing a search for some reviews on the company but nothing came up. If anyone can help I'd appreciate it, or if anyone has used a different company which they felt was reliable (and would also respond to me) could you let me know please.

Thanks.