I have just ordered the V4 update for my M2.

What type of life are you getting out of the hot Ends.

I only ask as my first Hot end lasted 2 years printing about 20 hours a week.
And I haven't been abled to get 3 months since.

I have just ordered 2 rolls at the $29.00 price direct from the sight.
I ordered the second one to get the order over $50 and get the free shipping.