I have been going to Yanox for years and have been very happy with my results. The Soprano XL Laser is one of the best, and this is key - you need the proper laser to get the right results. Oksana is great and always takes her time to do a thorough and good job and is careful with the painful areas. This is another thing to keep in mind - there is some pain associated with laser (especially areas that have thicker hair). If you think there will be no pain, then you are mistaken and laser is not for you. Also the higher the frequency (pain involved), the better the results.
For Groupon purchases, you can always call in advance to ensure the Groupon meets your needs, that is what I did. I have brought several others to Yanox and they have all been pleased (including my picky Mom). I typically do not do these reviews, but based on the negative reviews here...I had to chime in.