I've never heard of the make, but it looks quite good, Kate. Assuming the HD tuners will also record SD, it seems something of a no-brainer to go for that, instead of an SD only model. The only thing I would query first, is how it would receive HD transmissions. Do you need a dish, and if you already have one, would it be compatible? I don't know what TV systems you have, but here, we have Freeview, which is SD only, received from a standard TV aerial, or Freesat, which is fairly new, and is received via a dish, but can get HD.
If you have the 60 day return option, I suppose you have nothing to lose by trying it.