exhaust electric cut outs which brand????

I've been looking at getting some electric exhaust cut outs for my Cuda but have heard some bad things about them. I almost went with QTP's but quickly retreated when I heard about the issues they had. I then thought abought Summits, cheap but is there a reason for that? I am getting real close to purchsing a set from Race Ready cut out through AUTO PARTS DEALER.COM for $381.16 shipped but would like to poll the audience first for thier opinion on this one?????