Here we go - hope this is constructive...

Positives:

• Sticks to standard e-Commerce so feels familiar, tries not to be too flashy, which is good when you are trying to sell so many things.
  
• Clear contrasting calls to action
• Like the fact that the dynamic menus make most sub-categories accessible from anywhere in the site.
• I didn't come across any errors on my visit

• On first visit, I didn't know what the site was - there is no 'in your face message' telling users who aren't familiar with the brand what is being sold... You have to dig deeper to find out that the site sells EVERYTHING! ;-)
• Brand could do with being a bit bigger?
• Dynamic menus can be a bit fiddly
• Slightly confused by the combination of pop-up windows and main pages for products.
• Site is too narrow - 800 x 600 is dead, even the BBC have cottoned on...
  
• Font size too small (because width is too narrow) makes site look a little dated.
• Loads of copy on the site - FAQ section is too long - is it really that complex?

Best of luck
Matt Illston
www.mrzen.co.uk