I have been using this filler for 2 years. Everything from commuting to intense offroad in Northern MN. Lots of rain riding, dust riding, mud drops and water crossings.
0 issues whatsoever. The design and ease of use is great. Other than my adventure pegs, this is one of my favorite upgrades. You interact often with your fuel filler, so making it easy, convenient, and better overall designed greatly improves the experience.