As most chinese sights they have poor quality and under powered lasers. Some of there lasers may be good as a first laser but it willnot be great. I reccomend getting a weaker laser htan the one you added a link to. Start with weaker (50mw or less), lasers and then progress. If you choose wuality over price try olike or rayfoss for medium-high quality and sights like dragonlasers cni (order from a group buy on the forum) or laserwave. No matter which choce you make BUY SAFETY GLASSES if it is over 5mw.
Overall welcome to the forum and have fun.