The Zuo 205204 has a steel tilt lock so there's very little chance of it breaking. If it does break, you can always return it for a refund.
Yes it is fully adjustable with the three adjusting levers on the side and underneath the chair.
You should replace an office chair when it becomes uncomfortable or breaks. There's no specific time interval for replacement.
If your home office doesn't have room for extra relaxation furniture, consider adding an executive office chair instead of a lower end chair so you can use your work chair for relaxing breaks on occasion.
The best advice is to take standing breaks office to keep from hurting your posture. In addition one needs a chair that will reduce back pain and also have comfort.
time to get a new chair
The most likely place to purchase replacement office chair parts would be from the manufacture of the office chair. If you are unable to contact the office chair manufacture you could always buy a new chair.
A chair with wheels is called a "rolling chair" or "office chair."
Some office chairs do come with brakes, but if you're that concerned with the brake feature it might be best to first find an ideal chair, then equip it with replacement wheels that come with brakes.
A red office chair can be purchased at your local chair store, such as Office Max. A dedicated agent will be happy to talk to you about your purchase from the store.
For a nicer office chair it could be anywhere from 100 dollars to 300 dollars. but an average office chair is going to be about 150 dollars.
One of the main benefits of having an office chair mat is that it protects the flooring from scratches that can be caused by an office chair. The following link provides even more reasons as to why it is beneficial to use an office chair mat, http://www.sitbetter.com/blog/chair-mats/the-benefits-of-owning-a-chair-mat
A reclining office chair is very much like a standard office chair with the exception that it has a retractable footrest. Most office chairs have a variety of positions, a reclining office chairs provide more comfort to the sitter.