Can anyone comment on this chair? (Edited for 3 chairs)

[Wyers]

I'm looking for a new office chair but want to be economical about it. Can anyone comment on the following chair? All details in the attached link:

Raynor® Patriot Multifunction Task Chairs



If anyone has any further suggestions they would be appreciated. I'd prefer not to spend over $250 cdn.

Thanks.

EDIT - a few more... both mesh


Global Executive Mesh Back Manager Chair


Office Star Air Grid Manager's Chair

Obviously support and comfort are paramount.