Look forward to hearing how your experience is come Easter.
Whilst it's not Easter yet, it's not far off. Also, I thought I'd measure wear on the-waxed chain every three months, and it's now three months. It happens to coincide with [proper] seasons too, so this is the winter chain waxing experience. In summary: a very good result I think.
Over 2,250km. the chain has worn by between 0.5mm and 1mm over fifty links (nearly the full length of the chain, measured hanging up with a weight on the end). I'm calling it 0.75mm. Fifty links is 1,270mm, so that's 0.06% wear, near enough. Even being pessimistic and calling the wear 1mm over the 1,270mm (it's definitely less than 1mm), that would be 0.08%. On the basis of this more pessimistic figure, and given that the chain has been used for 2,250km it can be projected to reach 0.5% wear (my replacement point) in 2,250 *(0.5 / 0.08) = approx. 14,000km. The more realistic figure of 0.75mm wear gives approx. 19,000km projected lifespan.
I anticipate that wear will not be linear with cumulative distance, so the projected totals at the 0.5% wear point are probably a little high, though given that immersive waxing 'resets' the chain to being contamination free, or close to, each time it's done, I'm optimistic that it'll be towards that.
The chain has been used in the wet about 25% of the total distance, by which I mean that it rained for an hour or more on those rides. It being winter, it's been used in 'wintry dampness' pretty much all the time, say 75% of the distance (including the properly wet 25%). I have variously wiped the chain clean with alcohol or re-waxed it (immersively) after wet rides. In total, it's been immersively waxed five times during the 2,250km. The total 'work time' - i.e. me doing something rather than just waiting for wax to melt - for each immersive waxing is 5-7 minutes (remove chain, place on pot, turn pot on, wiggle chain a bit in melted wax, remove chain to hang up and set, replace chain). The elapsed time per waxing is a couple of hours. Oh - all roads, but many very much on the lane end of the spectrum and covered with winter mud.
So, that compares very favourably with my normal chain longevity (to 0.5% wear) of five or six thousand kilometres. More to the point, however, the whole drivetrain and the bike stays fabulously clean (even before wiping with isopropyl alcohol). So far, this is very good and well worth the few minutes 'work' involved in re-waxing every few hundred kilometres.
(If there are any calculation errors above, do please point them out; a decimal place in the wrong place would be ... unfortunate, in the overall calculation.)