It only has two ports, but will work with up to 254 computers like a dlink or netgear. I have multiple 2-15 computer networks running off this little box and it's been performing flawlessly.
It's MUCH more friendly than a sonicwall or 3com though a little less userfriendly than a dlink, but any semicompetent tech with a basic understanding of ip and firewalls would have an easy time setting it up if they RTDM (Read The D$*# Manual).
Never needed tech support so I can't say how that is.
All of this is from the point of view of a tech who understands about NAT, firewalls and other semi-basic network knowledge. If you're a novice looking for a simple setup you might be able to get away with this if you Read the instructions, but I'd recommend hiring a tech and saving yourself a lot of trouble if you don't really want to spend time learning about the geek terminology.
The printed documentation is just the basics to get you started, the more complete docs are in a PDF file on a CD. Since the full-blown documentation is only 32 pages, this baffles me--is it really cheaper to create a CD instead of printing a 32-page pamphlet?
So far, so good. It's simple yet has a lot of features I might use in the future--VPN support and NAT to name a few. For 40 bucks, it's a great deal.