Eh. Specna quality is all over the place. I bought an Edge last year and it's been fine, but others haven't been so lucky. The Specna feature list is decent, although the X-ASR mosfet is a gimmick and does nothing but cause trouble if you go to a high-draw motor. It'll protect your trigger contacts if you use 11.1V, but then you'll get overspin and double-shots on semi, so, meh.
CYMA and G&G meet the "decent straight from the box" criteria, but are mostly plastic bodied at that price point. That's not necessarily a bad thing, as decent plastic will stand up as well or better than Chinesium pot metal.
Are you dead set on metal bodied? Do you want that short PDW length? Are there any specific features that are must-haves for you?