I have used the trim daddy and have just purchased a (MT Professional £2,100) the trim daddy I sent back as I bought two units and one of them wasn't working on arrival, and when they sent a replacement one of the units stopped working around two hours into trimming, So I returned both of them in fear that they were not going to last, and at around £400 each I wasn't going to take the chance.
But I was impressed with the trim daddy much quicker, just question the quality.