I don't have any experience specific to that model, but as far as generic trailer buying advise, I'd recommend choosing quality over frills. There are a lot of cheap trailers with a lot of fruit that doesn't stand up to wear and tear, and there are a lot of cheap trailers that forego a lot of the shiny bits and have quality where it counts. If you start with a good solid base, you can add the parts you really want down the track, there's no shortage of parts and addons around.
If you're ever going anywhere near a beach, I recommend going for a galvanised trailer.
A good sized toolbox is a bonus too. You might think, as a seasoned tenter, that you'll never need that much storage, and it might be a while before you do, but there's always more crap you can bring. A toolbox on the front is great for things that you always want to have along, but don't want to have to pack and unpack because they're in the trailer box under the bed.
Also, I've said it here before and I'll probably say it again, I think in the lower price range MDC trailers are definitely worth a look.
