Sofirn are surprisingly good lights for the price, depending on what you're after.
I got a SF15, SF16, IF22A, IF23 and Q8+, plus a SP40 headlamp.
Nothing I would trust to be reliable over time if I were doing serious work, but as backup EDCs, sure.
If I were to buy one Sofirn light now, I think I would get the SP35. Not a big fan of 6500K, but it's 21700 and seems to be a good light.
EDIT:
Only Sofirn zoomie I've seen is the S11C. Bought one for a friend, and the beam was much better than most Coast / Led Lenser zoom lights I've seen. Little shadowing and almost none of that quare die image you when fully zoomed in.
Personally, not a fan of zoom lights. It's inherently a weak point in the construction.