Had a gel nail fill that wasn't cheap (was charged extra for a repair). Have had nails for more than 25 years with NEVER a hint of fungus!!! Had one fill here and developed a fungus on 4 nails. I believe the spa is clean enough...I would be incline to consider that the nail tech was not educated enough to do a gel fill and pockets developed under the nails creating an environment for the fungus to grow. Unfortunate that it is so difficult to find a decent gel nail tech in the Phoenix area!?!