I own several "name brand red dots" (holosun, vortex, swampfox) and I've also tried out a few budget/generic red dots and this is closer to the name brand in terms of quality and ruggedness.
Couple bonus points I'd like to highlight: has a normal height housing (unlike cyelee that requires super tall irons to cowitness), windage adjustments click when you turn them and aren't set screws that can lose zero like some budget mrds use

This is a ridiculously capable red dot at this price point. Aluminum housing, shake-to-wake, auto-sleep. The dot is crisp, the glass is clear, and it dropped right into my Shield ORS without an adapter plate. After I purchased the sight, I got a message from the seller telling me they would send other screws if the included ones didn't fit the slide. They didn't (metric), and I needed 6-32, and told them so. They IMMEDIATELY sent out a screw "kit" that included both metric and SAE screws at no cost. You don't expect a red dot this good or customer service this attentive for less than $100. Hard to go wrong here.

Received the sight today and installed it on a Sig 365 XL after removing the Sig Romeo zero. Fit perfectly without any installation problems. Went to the range and sighted it in at 15 yds. which took about 20 minutes and 25 rounds. I could never get the Sig Romeo zero within 6" of zero. Contacted Sig but never heard back. This is an aluminum sight and appears solid. The price make it a great value. As it stands now I'm glad I took a chance on this sight.

Some people you just can't convince because of the price so I'll just say try it you buy another one for your other pistol also, bright, clear and tough as heck mine was dropped hard from like 4' onto the glass then bounced on it side, nothing broke and still held zero after 1000 rounds