The problem with a lot of general office (task) chairs is that they do not support over 175-ish pounds for the long term. Until I retired, I was a secretary in a high school office, and over the course of 30 years bought a lot of chairs for teachers and support staff.
The specs for this chair say up to 250 lbs., which leads me to believe it is better made than many of the chairs that are out there and at $299 it is less expensive than lots of chairs that are rated for that weight. I have (and love) a
Sew Heavenly chair. It's basically as expensive as a piece of furniture but I don't expect I will ever need to replace it. I also opted for the higher shaft, so that I can raise it to a higher level than the standard (my table is a bit higher than I would prefer, and every other chair has been uncomfortable).
My concern with the Arrow chair is also a feature I love - the storage under the seat. I think that the square frame that the seat is built over makes me wonder if it would press against the back of your legs? I normal chair is kind of rounded or waterfall design to prevent this.
It's unfortunate that you can't try before you buy. It does have good reviews on Amazon, and free returns with Prime... One reviewer said overpriced for what you get, but I think that is a person who may not understand how the hydraulics work, or perhaps is small enough that it isn't a concern.
Long story short - I think that if you purchase from a a site that allows easy and free return, it's worth a try!