Acebeam X45 Gen II - Good Source to buy and your experiences?

I fell in love with my Acebeam K70 and started looking into the Acebeam X45 Gen II. I instantly wanted it after reading a few reviews.

What's everyone's experiences with this light? Good? Bad?

I've checked out some of the usual buying places, like illum, banggood, amazon but think I can do better. I bought my K70 for $108 out the door from illum with a coupon that no longer works.

(BTW - are there any good 4x21700 flashlights?)