rival for sure. im using it for couple of days now, quite nice

however the size is quite big and the clickers are kinda stiff.

so if u play a lot of clicking games, might be a little bit hassle

i bought from another forumer for 185 new unsealed.

hurm, if u have been using other types of ss mouse before, its the same size as sensei, but the shape is more ergonomic.

the clickers are a bit stiff but u can get use to that.

overall, i give it 9/10.

oh, it got customize colour as well. pretty nifty if u ask me

my rival mouse middle button keep double clicks.

anyone having same issues? its quite new.