If u ask me, better go for fabric version. Pu leather from secretlab is just too fragile. Markus chair I tried sitting on it in ikea, felt its comfortable but I'm not sure for long hours. Didnt pay particular attention to the head rest part.

Lol I have never try the fabric version. Probably never will. So I cannot comment on quality of the fabric chair.

[attachmentid=10484444]

This is fabric version. So far used for 4 months. 
Not the best chair i feel.
Better buy titan if u have habit cross leg on chair.

I'm actually looking for mesh chair. But sabah don't have the best mesh chair.
Recently saw ads thermaltake cyberchair. Similar like the ergohuman.

My thought is after temasek pump money, maybe quality should be improve. Cross finger on those 2020 series.

I have the 2020 Titan PU. Still holding up after 6 months. Hope it stays pristine. 
https://pictr.com/images/2020/05/07/5DsgcP.md.jpg

Didn't use any special solution except occasional wet wipe. Extensive seating especially during MCO. So far so good.
Tried both Omega and Titan before purchase.

Please look elsewhere. DO NOT CONSIDER SECRETLAB. I REPEAT. DO NOT EVER CONSIDER SECRETLAB. Your money can be spent elsewhere with a much more quality chair. To be honest, my rm150 pvc chiair hold up better than this 500SGD crap.

Look elsewhere, lol not secretlab. U will regret it. Maybe if ur budget allow, can look for real leather one, otherwise go for fabric one.

IKEA chair I sit quite comfortable. But not sure the long hour sitting how it feels like. But ikea chair also, please avoid pu leather. At all cost lol. Unless u can guarantee ur skin wont contact with the chair AT ALL.