Yeah dm1 is nice
Only drawbacks on it is the braided cable and coating (for me only) it didn't like my dry hands
I have it on my desk as a fast swap cause I really liked it. But I got a free rival 300 silver so I'm trying that out. They're both really good, DM 1 had better feeling clicks and side buttons for me. Also the overall hold felt a tiny bit better, felt like I had more control doing certain things
While the rival has a better grip, cable, mouse wheel, possibly sensor tracking, and I personally like the weight but I'm a low sensitivity
So they both outdo each other in certain spots but they are for sure both great mice. The firmware on the 300 is a little better though.