The usual list of suggested brands in the DD price range are: BCM, SOLGW, Geissele, LWRC... all give or take a few hundred dollars. There are probably a few others I'm forgetting at the moment.
I have an M4V11, the Keymod older brother of the V7 and it is my favorite rifle. Out of the box it's a great shooter, and once given a Radian Raptor charging handle and a Geissele trigger, it really wakes up. It has had zero issues, has excellent fitment, and is lightweight. I feel confident that if there ever were issues, DD's customer service goes above and beyond to make it right. For the most part, that statement will be true for many of the other brands at this tier.
I think at this price point, there really aren't any drawbacks or cons in the list; only minor things you might want that one model has that maybe another model doesn't, i.e. the V7 comes in the color you want, or the LWRC is a piston gun, or the BCM has the rail you like and ambi controls, etc. So really, it'll just come down to details and the availability of what you decide to get. But I think you'd be pretty pleased with a V7.