Reflectoi tried it, it worked but i wasn't a fan of the shape so I didn't stick with it. from the research I did it seems like a quality product if that's what you're wondering. it's definitely not some walmart mouse. that being said if you use a g203 and are interested in a ergo mouse idk why you'd consider another finger tip mouse. find the shape you want first. if it's an ergo like the g403 then i'd recommend looking into the g-wolves skoll or an ec2. if you wan fingertip the xm1 should be fine or you could get a g305 and have a wireless lighter version of your mouse.
Yeah I'm not really looking to buy an ergo mouse specifically, just something that would fit my hand size well as I have relatively large hands and something with good build quality that will potentially last as I've heard from my friends that the mice with holes have pretty bad build quality (my friend's glorious model O broke after about 2-3 months and another friend's coolermaster mm710 broke in a month or so as well) and yeah I use fingertip grip. Ty very much for your answer!