I have been very pleased with them, and I don't think you will be disappointed. I don't know if it is still this way, but you used to have to specifically order the instructions - they were at no charge but they did not automatically include them in your order - so don't forget to do that. Also, they are extremely helpful on the phone, so don't hesitate to call. All of the parts are top notch and should last as well or better than other commercial lights you can buy. Their reflectors are the best!
If you are even just a tiny bit handy you will not have trouble putting it together. If you are hopeless with tools or looking at schematic drawings then you might want to get someone to help the first time. The drawings are easy to follow, IMO