Can you provide a link or something to see it?

You should be able to see the kit at this website

http://www.leevalley.com/garden/page.aspx?c=2&p=47455&cat=2

I'd be a little worried about having to replace the 2x4s in a few years. Looks like it would be a pain to dis-assemble, then swap in new 2x4s. Regular spruce studs will only last 2-3 years in ground contact. Pressure treated would last longer, but I don't like to use it in the garden because of the chemicals. Cedar or even fir would last longer than spruce, but these woods are more expensive too.

As to the quality of the kit, though, I'd have confidence ordering from Lee Valley. They are a great company and they've got some really neat products.

-Diggity

I've looked at that kit myself and wondered how well it would work. The problem with the bottom 2x4s on the ground occurred to me, but if I was going to build something like this I'd use Trex (the plastic composite decking) instead. That wouldn't rot in contact with the soil.

I'm getting up a little in age, and a minor back problem is probably going to get worse as time goes on. I may have to invest in this system, using Trex. I'd rather pay for the higher raised beds verses the doctor's bills.

What about tables? Could that help? Like this style?

http://www.kidsgardeningstore.com/raisedcontainer.html

It's an awful lot of material (soil, bricks, etc.) and then changing it out when the supporting wood gets yucky...when all the action is mainly happening in the first 6-12 inches of soil mixture.

It might be worth comparing to see if the cost of getting "tables" built compares to the cost of building similar size "brick kits" if you are taking the view of an accessible garden as your age.

HTH!

V. :)