I have this exact model of tank. I agree if you have space a 20g long would be much better with your oqn choice of equipment in it.
That being said this tank is quite nice.
Pros:
Looks very nice
Hood design is good (can left up or slide back which makes it easier to access the back panel
It is well equiped, has a skimmer, UV, X2 18w PC's, moon lights, fans in the hood, heater and bio media.
It looks very nice (I know I have put this twice but for me its an important point
).
Cons:
The instructions suck
The built in pump is not strong enough so you will need to add a Power head.
The skimmer fills the tank with micro bubbles. This apprently goes away though and is easy to fix.
The stand is pretty but not very stable. When I clean the glass the tank wobbles (try and buy without the stand and get something a bit more sturdy).
My moonlight seems to have a short and doesnt always come on
The moonlight is on the same power supply as the main lights so you cant have them on seperate timers.
Looks like there are more cons then pros but i do really like this tank. I only had an 18" gap to fit a tank in so this one was perfect. I'm going to buy a second one to use a QT tank when I get my main reef up and running as it looks better then the other hospital tanks I have here (and will be set up right next to the main display tank).
One other thing. If you decided to get it the price is the same from online shops and probably from your LFS which is proably better to buy from then ebay.