I originally got the Hyken but is was a little too narrow and short for me. I am 5'10" 220. I returned it and got the Dexley instead. So far it has been much more comfortable. If you are around my size I would try the chairs out in store for like 20minutes or just go with the bigger Dexley.
Am satisfied. Chair seems to be sturdy and was easy enough to assemble. Took some time and strength. Only detraction I find from the perfect chair is that the arms don't swivel. Hopefully will serve me for years.