If you are selling something other than wall decoration (i.e. fine art) and you are not based in the USA, from my experience you are just going to pour your money and time away without seeing any benefit.
You have to add work every day - only recent uploads ever shown
Really slow to add work
They have a scetion for CV and try to dissuade you from adding bio details ?!!
I was on this site for a year, uploaded regularly, put on line shows up and had an ROI of zero. If you are contemplating spending the money and are not a large gallery in the US selling 'commercial work' I think you might find this a shockingly expensive mistake
They do have an excellent, highly skilled and no doubt highly rewarded sales team who will sell the subscription to you
Self Rep artists listed
Mainly US user base
Very slow to upload to