I have this one from ThermoWorks. I like it just fine but I've never used another to make a comparison.
It has adjustable emissivity if you want to measure a temperature to a gnats eyelash. It also has jacks for probes so I have an internal probe and a surface temp probe. After the gadgetry newness wore off I don't use the IR capability very often but I frequently use the surface temp probe. The internal probe—not so much. I use my Thermapen.
With the hindsight I acquired by purchasing and using them I'd buy a Thermapen for measuring IT and a stand-alone surface temp probe for measuring grate temperatures.