The main complaints I've seen about the security gateway are mostly that it just doesn't have a lot of features, and some people hit some bad performance. It's

The main complaints I've seen about the security gateway are mostly that it just doesn't have a lot of features, and some people hit some bad performance. It's really lacking some important features for anyone even remotely a power user. But it seems like they're porting over a lot of features from the EdgeMAX router line to the Unifi line -- so in a few version cycles, you'll get more powerful routing, full VPN, DPI, etc. etc. I'd probably wait on buying a security gateway, though I admit, they're nice for "coherence". The EdgeMAX line is apparently great. I've never used it, but their basic routers are about as cheap. You just don't get fancy SSO/integration, but they are reliable and fast as hell, from what I've heard. That said, I wouldn't let the security gateway dissuade you too much. Their Unifi product line is still generally very good, especially WiFi. I have a small atom board running pfSense as my router, but it's backed by 2x Unifi AC AP Pros (802.11ac), along with a Unifi switch, and a Unifi Cloud Key for running my controller. It works really well, allows remote access, decent breakdown of where my bandwidth comes from vis a vis APs and switch, etc. The AC AP is probably one of the best direct APs I've ever used in terms of quality, though there was a firmware bug that annoyed my Apple devices for a short time... Unifi is almost certainly never going to get close to the features of pfSense, but maybe in a few years down the line when I retire it I'll look again. The WiFi APs and stuff are good though, I'd recommend them, even if you don't go with the switch/router.