Perfect for a small boat. Install was about 90 minutes on an aluminum panel, factory installed on the T-Top. Template was helpful but not necessary. When drilling aluminum be sure to use drilling oil, otherwise there's a risk of breaking a bit. Take your time.
Product is easy to install with simple hand tools and a drill. Layout is key when using with the sun shade. Product works as described.
Installation went well. Followed installation instructions, no problems.