Summary: Its great for small business applications.
Pros: Wizard is awesome, simple and right to the point . For those who plan to use it an don't know how buy support 8x5 for around $100 a year. I am sure after a year you going to feel comfortable with it.
Cons: For some reason sonicwall in general is not friendly with VoIP and needs tailoring.
Summary: IF you find this device difficult to use and you are calling yourself a network administrator (like Joey G.) you need to change careers. This is about as easy as it gets in the real world. There are unfortunately a LOT of people who are barely qualified to call themselves PC repair technicians giving themselves the title of network administrator or network engineer. Any REAL net admin will have no issues what so ever setting this up.
Pros: Excellent firewall providing unified threat management. Highly reliable and easy to set up and maintain. Fantastic price-point and good routing features built-in.
Summary: Please ignore the 1 star review. If you can't figure out how to sign into it then it will be over your head on how to configure it.
Pros: These are great units. I have installed many of them and have 20+ years as a tech. They can be a bit complicated to figure out but that is because it is very configurable and has a lot of options.
Summary: If you're considering making the switch to SW and the learning curve has you scared, you might consider buying a TZ100 to learn with. They're a lot cheaper and you won't feel so bad if you decide it's above your skill level.
Pros: This appliance is incredibly powerful and customizable. I have five of these installed with a vpn in a star configuration. The vpn has never failed and I'm approaching one year of up-time across all devices.
Cons: The learning curve is very high, even if you have a good networking background. The good news is that there are no command lines to fiddle with. The gui is well organized. There is however a hidden, advanced control panel that controls some very obscure options. I've only had to use it once.
Summary: We have home-grown Linux firewalls (with OpenSWAN) that we had been using for VPN connection and decided to go with a more turnkey approach. The SonicWALLs seem to be pretty cost effective and have features that we were looking for (including WAN failover) and 3G modem capability (in addition to more standard DHCP server, SSL VPN, firewall, Dynamic DNS, etc. features).
Summary: They seem to be licensing every aspect of this router. They are for items that take maintenance from Sonicwall's team. My only problem is that not enough people subscribe to fund their operations to the standard of say other A/V vendors.
Pros: Great firewall for the 300-800 dollar range. Love the new load balancing and failover response. On the tz200 it would take some 5 mintues for clients to see the switch. Now it's within 1 min. Even Windows XP machines see the change within one min (for failover).
Cons: Some people like McFarley (a reviewer here) don't understand how this works. Yes this takes knowledge to get working in a "complicated" environment. However it does have Wizards. If you can't figure a wizard out then you are not a network administrator and not even in the least should you be touching this device. Self given titles like this ruin the credibility of our IT industry workers.
Pros: I have been working with Sonicwall firewalls for years and I love them. You get all the functionality of Cisco products without the "attend $20,000 worth of classes to do it" problem. Tech support is awesome as well. Yes, for complicated things like forward ports, multiple WAN connections, you'll need help, but I have yet to post something to the support group and not get an answer within 12 hours.
Cons: Make sure you buy it for the size you really need... don't skimp! I tried to use a TZ 210 once (before I knew better) to run a 100+ room hotel... it would do it, but not with intrusion prevention and antivirus scanning turned on...