Have been running the Roomba Discovery, 535, 560 & Scooba 380 for a year plus without issues 
AFAIK the Clorox Scooba solution is only available in US, the international retailers in other countries do not carry them.

Have tried various solutions, Mr Clean, AJAX Fabuluso, Kiwi Kleen, Clorox Non-Bleach Floor Cleaner, and Kiwi Kleen seems to work best - not much foaming.
Suitability between Roomba & Scooba depends on your flooring and also needs, if you have mainly laminated flooring & parquet flooring then go for a Roomba, using Scooba on laminate floors will damage them due to moisture.

For regular cleaning of kitchen floor, Scooba works best as it cleans up whatever grease or liquid drippings on the floor.

If you live in a condo/high rise, best to go for a Roomba as your first robot.

Checked out the local distributor today.
Only the 580 is available, and it's priced at a whopping RM2588!
Has anyone tried the locally-made Picabot yet?

Dunno. 
I'm checking out the Picabot next weekend. It doesn't have the virtual wall feature, but I doubt I'll be needing it anyway.

Picabot was being sold for $1488 during Homedec recently. Salesman said that compared to roomba, battery life is shorter and vacuuming power is also lower (cannot pick up peebles and screws, which he said is unlikely to be found in our homes anyway unlike Westerners). Picabot also has a special bulb to disinfect the floor (I'm not convinced though).

There's another brand, Oku San No, which is selling for less than 1k. Haven't seen it in action.