I've had an old Saris (then Graber) 4 bike for around 15 years and have no problems with it. Excellent customer service - needed some parts I lost. They were in the mail in days N/C.
It's an 1¼" cuz that is the hitch I had when I bought it. I Made an adaptor /extender to fit my 2" and clear the rear mounted spare on my full size GM van. Latest car now has a 1¼" again.