Hi all - just wanted to chime in. I've had the Steelcase Leap v2 for a couple of months now, and can really say that it was a great buy. For 5 years my chair was an Aeron classic size B, and I didn't think anything would be able to live to up it.
The adjustability of the Leap v2 is great, but takes a little while to dial in the perfect setting - but once you find it, you forget all about the chair, which is exactly what we want. The frameless seat and backrest are extremely comfortable, and the armrest adjustability many times better than my Aeron. In my work I have to adjust the armrests often, so the Steelcase style is great for me. I also like moving my legs around once in a while, so the flexible seat pan and frameless design are a plus. I thought the seatpan cushion looked thin in photos, but in person it's not hard at all, and very dense, so your butt will never hurt. The fabric is good, though I have to admit I always use it in an air-cond room, so I don't know how it responds to sweaty conditions. It came with an add-on headrest, not the same material as the rest of the chair, but ok enough for leaning back. I suppose you could buy a better aftermarket headrest, but it's not a big deal to me.
I still love my Aeron because of the nice floaty hammock feel and zero hotspot pressure points on the legs, but this Leap V2 is right up there with it. I'm 180cm and 90kg, but the chair doesn't feel small or weak at all. In fact it's bigger than it looks in photos. I shared the two for RM5.2k promo with someone, so 2.6k is a bargain for a chair of this quality. Casters are first class too.
Zenpro distributes Steelcase, and their showroom is in Menara Prima in PJ. For those looking for HM chairs in KL, Trax in Bangsar is the official distributor, but prices are high. If you have the budget for it, go for it, but personally with the way the Steelcase performs, that Leap or Gesture deserve a look regardless of budget. Presented with the choice of two leap v2 chairs for RM5200, or one Aeron remastered for RM7200, it would be an easy decision for me. :-)
I think all cushion seats will have heat issues. Judging from the forum's responses, most of us don't switch on aircond all the time unfortunately.