Got my 340+535 combo from HSN
The 340 turns out to be a 380 (model 6050) with a grey 4400mah battery.
Initial impressions, the Scooba is very much noisier than the Roomba. When it hits an object or an edge, the correction movement is not as smooth as a Roomba, probably due to the tight spacing around the bumper. After the initial 16 hour charge and filling up the tank, the Check Tank light kept coming up and it refused to run. Used the included pump to prime/pump air in for a couple of times and it still would not run. Took the battery out and reseated it in and finally it started on the cleaning cycle. It ran for 40 minutes and went to drying mode for 5 minutes before the power light turned red.
The marble floor was pretty much dry after its run and there was still some water left in the clean tank. Hopefully with more charging cycles the battery will be up to par.
As for the Roomba 535, much better than the 4230 Scheduler as its quieter and slows down when approaching objects.