Well, we did it, mainly because we have an Edwardian house with a range of original (ish) Lincrusta friezes above the picture rail and terrazzo floors in the hall. I know other safe zones are available, but the straight up-down variety - which I feel most comfortable with - are not for us. Previous incarnations of the wiring had thankfully not damaged anything, but had compromised by running lighting cables all over the place.
We mainly went with one of the products that uses a battery-less switch and does not connect to the internet - MK Echo. It works fine. I have never experienced any form of interference with our other wireless devices (433 and 866 will be pretty noisy in our house), presumably as the switching protocol is very simple. I don't own a tin foil hat so haven't ever twitched my curtains to see if the Russians are out front in a van trying to jam the signal or turn my lights on for me.
We have tried one of the smart device types - Lightwave RF - and simply cannot recommend it. You get what you pay for and it is, to say the least, flaky. I work in IT cyber security and the risks of someone hacking it don't keep me awake at night. However, about 20% of the time the lights don't respond to commands and the plastics on the switch plates (they all have plastic bits, even the metal ones) go yellow after a couple of months.
Be aware that if you go the wireless route you'll inevitably be putting a receiver (dimmer, relay, etc) somewhere in a ceiling void. It needs to be suitably mechanically protected (in an enclosure) and to be accessible or maintenance free. You can be certain that this gizmo will be bigger than an average ceiling rose.