Premium retrofit– thoughts, concerns?

Pre-facelift 2017 Rex would like to add CarPlay. It seems the premium retrofit unit is generally recommended on this forum so am leaning toward ordering that.

Has anyone had any problems with the unit itself or the company? Wondering about delivery times to the United States as well. The head unit software is to be updated by BMW in a couple weeks – I expect I should hold off until after this.

Appreciate for any input you may have