It's less expensive than the UGODOG, but it still lacks sides to protect your floors and walls from overspray.
Overspray can discolor wood framing your mirror.
When you follow a specific method for your spray painting projects you'll minimize drips, get even coverage and avoid overspray.
Cover any surrounding areas to prevent overspray from getting on areas you want to keep clean.
While Wagner claims that their power painters produce less overspray, it still produces some as it is virtually impossible to completely prevent it; use masking tape and drop cloths to protect anything you want to avoid painting.