Thanks for the ref, stealthsquiggle :) I have stumbled upon this website where I think I can answer few questions.
Silver73: "I would love one for the kitchen especially. Is it able to vac up dry breakfast cereal such as cornflakes?"
iMayne: Yes, dry cornflakes are ok but not so ok when wet. My Roomporium lol picks up wet cornflakes but leaves a mess in the bin and on the Cleaning Head Module, CHM. I've also seen where tiny moisture gets inside, on the circuit board, and damage it so I avoid running any Roomba over liquid.
Silver73: "Please please if anyone has a Scooba I'd love to hear how you find it!"
iMayne: So far they are ok for the 1st yr or 2. It cleans very well but the issue they generate is that it spins around (caused by a faulty sensor on either drive wheels) or all lights flashing on the control panel (caused by a damaged control panel). The beep code are important as they tell you what is the problem. Most times it needs a new battery :) Overall...I love them.
As for Karbea, I will not say what battery to purchase (China or OEM). I have tested few "china batteries" and they loses power after 6 months. OEMs are great but nothing is perfect. For a battery to last long (Roomba battery), the CHM needs to be cleaned and if you are storing your Roomba, fully charge the battery and remove from Roomba. Leaving a battery inside a device, any device without in used for 3+ weeks, will damage the battery. For Roomba/Scooba parts, feel free to contact me for best prices possible :) Later I will sell parts for you to fix your own robot, that way you will save money ;)