I have a Sharpe Platinum HVLP gun which is one model higher in their lineup than the Cobalt. I've probably ran 40 gallons worth of material through my Platinum without a single problem. It's a simple gun with low air flow requirements and it will do a great job of laying down paint.  The HVLP gun will greatly reduce your overspray and with a gravity feed gun you can use every drop of paint you mix.  Here are some pictures of jobs I've painted with my Platinum over the five years that I've had it.