Your review: I've used this chair for several years. I put "miracle caster" brand giant casters on it and used it to get around while disabled. (Highly recommend those large casters.) This chair is built like a tank, a tremendous value.
Even without the large casters, it is slightly tippy, especially for a taller person. My chair has tipped over several times as I leaned forward to pick something up off floor. Even a dumb beast like myself eventually learns - I've avoided spills of late.
Pros: Fantastic construction, simple and very comfortable. Unbeatable quality for the price.
Cons: Takes some time to realize the tipping threshold.