Incident meter mode is one of the things I require in a hand held meter. I've never tried one of the new inexpensive clip on meters. Don't really need one.
My 40 year old Gossen SBC LED with slide over dome is accurate. My Weston Master VI just died, had the inverse dome for incident metering, what I liked about it was I could work it with one hand, the Gossen is fiddly, getting the LED just in the middle takes a few passes.