Fantastic end result - shellac French manicure, but nowhere on Treatwell or Lily's website did it say you have to pay cash only. If I hadn't had enough on me (and I usually never carry cash) it would have been very awkward.
The end result was lovely however there were some things about the overall experience that weren't particularly relaxing. I had a late appointment and the staff were cleaning as I was having my treatment done which was a little distracting. I was also told halfway to pay which I found quite strange.