how does the ND.YAG compare

I’m just starting to look into laser treatment, and have had a consultation with a clinic that uses a smart-epil ND.YAG. does anyone know how this compares to other lasers? the info brochure says it takes 6-8 teatments before you even start to notice a difference, which seems very slow - are they just being conservative? It is apparently a new machine, so not old technology (hopefully).
If anyone can help that would be great.

I just check our literature regarding all of the hair removal lasers, and the Smart-epil seems to be powered enough to perform. Perhaps they are scheduling treatment sessions too closely - they should be 6-8 weeks apart. By 6-8 treatments you should have good clearance. Keep us posted!