I visited these 2 showroom (KM1 East 2000sf / Rainz 1900sf) end of last year and they are totally different beast altogether. Location wise, Rainz has to endure the kind of pack density while KM1 East is on the lower density area.

Both are targeted for own stay especially families, but KM1 East has better designed such as individual bathroom for each room and a shared bathroom, while Rainz do not have individual bathroom for all the rooms, but the Maid Room has it's own attached bathroom. Rainz kitchen is not big enough given the size of the unit. There are other stuff such as, KM1 has private lift lobby, high headroom, spacious balcony etc, while Rainz separated the balcony area with a lanai.

Rainz has much much better facilities with 4 parking space while KM1 offers 3 (if i remembered well).. Rainz has better value for monies as i saw they practically includes lots of stuff into the price while KM1 almost nothing. I checked with KM1 showroom personnel that they have quite a number of foreign buyers, China, quite a number HK buyers and some other countries too..

I believe KM1 probably is for the richie rich, more private, where the higher prices comes with lower density and Rainz is more towards a value for monies approach for a typical local family....

I don't have that kind of budget to purchase any of this, but sure interesting to see the demographics of it...