I bought the NOVA DVR XP in July from Craft Supplies USA. They were having a nice sale. I upgraded from a Delta Midi. I am totally pleased with it. The varible speed is a joy to use. I converted it to 220volt. If you get one don't rely on the instructions on Teknatool's website to convert it to 220 volt unless they have updated it for the new version of the DVR XP. It is super quite. I bought the outrigger unit but have only used it once. I will probably use it more when I begin turning larger bowls. Just rotating the head gives me all I need at this time.
Everyone I checked with that has this lathe was very pleased with it. No negatives from anyone I checked with. I read some comments from turners that have never used it, that they thought the speed change by pushing a button was to slow for them. You can preset 4 of the five speeds and then adjust any by holding down the speed button. Plenty fast for me. I don't think I will ever notice the few seconds in my bowl output count.
My recommendation is "go for it". Woodcraft has a nice sale on at the moment.