Does anyone recommend any inexpensive microcurrent machines for personal use?  I'm considering products such as Nuface, Neurotris, PicoToner, CACI MIcrolift.  I want something to use on myself before I make a large investment on my clients (still 2-3 years down the road for me). I've had some treatments done before and absolutely LOVED the results.  I guess the question is...do the more inexpensive products work?