Really Ubiquiti is doing impressive hardware. Also I like very much Mikrotik, cheap, and very powerful.

Here (Spain), in my company, we used to work with Sonicwall, but we found some issues and sometimes poor customer support and change brand. Client to site and SSL VPN was not free (only included one or two licenses, it depends on model)

I think one of important questions is Sonicwall is an UTM, acts like firewall, router and also security appliance. Acts also like a powerful load balancer. This lasts parts are also very important for me.

Now we work with Cyberoam, very powerful hardware, cheaper than Sonicwall (half the prize), includes reporting (CR25 up, hard disk inside), free SSLVPN, stable, and fantastic support. We are happy with them. Now is part of Sophos company, I hope the brand will continue this good work in future, and no surprises with the new owner, Sophos.

We run HP in all customers. Very happy, easy interface and powerful. 1920's are cheap and nice for SMB.
I avoid Netgear, we sold 2 units about 6 years ago in 2 different customers, and network hangs in two each. I decided to leave them. They changed units for another model but a lot of time spent.
TPLink is beginning to work in enterprise line. What do you think about Jetstream line?