I have been using XM2we, cheaper and older version, only 1K polling rate and with 3370 sensor. The quality has been fantastic for build, click quality (all clicks, including scroll wheel and side buttons), and the claw shape feels good in my hand as well (18x10, usually aggressive claw shape).
Wandered around the mice market today and found this deal. I believe it was reviewed as one of the best mouse in terms of latency, build quality, click quality, and sensor implementation. Might not be the lightest of all the mice out there today, but it's worth the quality you're getting. I think I'll pick this up later on.
Surcharge: 0% with in-store payment, Klarna & zipMoney, 0.8% with card & PayPal payment.