Thanks for the input. I am 165cm and weigh 103kg. Markus is too tall for me.
As you said, the foam is really too soft. I also checked out the other chairs in Aitsulab with foam but i feel it is too soft.
SiHOO M57 is mesh seat but i felt it is too hard and rough

I also went to Merryfair and Alterseat.
Merryfair chairs recommended to me was Tune or Fulkrum model at RM950 or RM800 seat was ok but the armrest is very stiff.
Alterseat has the most comfortable seat for me for their chairs below RM1k but the warranty is less at only 2 years.
Any1 have experience for SPACE - Essential Ergonomic Seat? Now they seem to have promo rm120 less for their chairs.
Probably try to visit them if they are comparable to Alterseat CG-07 or DT-10.

Hi. Did you buy the space ergo pro? Is it good? Wanna try space ergo and sihoo v1 but no time to visit the showroom/shop yet.

Hello ktards let me share something for you

Full version


TDLR version

The first version of space ergo chair is almost exactly similar to Sihoo M57. But the ergonomic pro version (newer one) more flexible compared to M57 (can adjust back height, seat, 4d armrest).

Ive visited Space and Aitsulab showroom yesterday. Space ergonomic pro is basically same with Sihoo M57 except for several additional flexibility (can move the seat forward and backrest upward). Material also almost same. Both are good and comfortable enough for its price but if you dont need the extra functions can just buy M57 because it has the foot rest option and cheaper.

I ended up buying Sihoo Doroo c300 btw. Pricier but more comfortable and i like the narrower seat more as Im only 5'3 56kg. But C300 is not suitable for taller and fatter person. I think you should try first before blind buy but space ergo/M57 is safer choice if you still wanna blind buy because the design is quite universal and can suit wider range of body type.