I say that because the dermotologist I used to see when I lived abroad got a machine at great expense. It had zero effect and they refunded their clients and sent the machine back after a year. They lost a lot of money.
Despite this, like a fool, some 5 yrs later I paid a place in Surrey to do this treatment on me, and guess what? It has NO EFFECT whatsoever. Grrr. Silly me. I complained to Trading Standards about unrealistic claims and they were completely useless. Buyer beware!
Most other forms of 'lipo' are invasive (Vaser, etc). I have no personal experience of the Vaser treatment. I did have conventional lipo in 2006 using very small narrow bore canulae and it was fantastic. Super quick recovery, no bruising or pain, and the flat stomach I always wanted. However that was done abroad with a brilliant doctor, I don't personally know of anyone in UK who can do to that standard. (High quality treatment must exist! I just don't know who ... and I don't need to find out as the lipo I've had done was just perfect).
If I personally wanted to get rid of any fatty bits now, I would get Coolsculpting done, but that's just beacuse I've seen the results on people and I have seen a good practitioner is offering it. It appears to offer a similar result to cannuale based lipo without the risks or recovery time. It is probably not cheap, but if the fatty bit is driving you crackers, then it's a case of weighing up cost/benefit.