[gdilla]

Fixed price is fine if: Not only you understand the scope, but the client does too. Make sure you write down exactly what you're going to deliver in your statement of work, and ANY DEVIATION, CHANGE, or ALTERATION is a change in scope and subject to a change request in writing with added cost.

Also write down in your SOW that anything you send to client for review or as a deliverable, is considered accepted by client if they don't say anything about it for 2 days.