I've been using paraffin wax for ~12m now, and I'm pleasantly surprised by how much *less* hassle it is overall compared to oily lubes.

My 'cleaning routine' is very quick:

• Open all the garage doors for ventilation and turn on the wax bath (I use a deep fat fryer, which heats the wax very quickly to to ~150degC, 300degF), well above the boiling point of water. I'm doing this because wax viscosity declines with temperature; it's about 50% lower at this temperature than at 80degC, so I'm hopeful (no evidence) that this helps it penetrate the chain.
• Rinse the chain quickly under running boiling water, for maybe 10 seconds; this melts off the outer layer of wax, taking any dirt with it: the chain looks sparkling clean at this point. Shake dry.
• Put the chain into the fryer basket and lower carefully into the hot wax. There's a bit of spattering at this point, as the hot wax boils off any remaining water. Good to put the fryer lid on!
• Once the spattering has stopped, agitate chain for a minute or so to assist with getting wax deeper into the chain.
• Switch off fryer, remove chain, and hang to cool off.
• Once cool, refit to bike.
• ~10 minutes start to finish, and not much longer if I do several chains at the same time.

Things I don't know about - would love to hear some *evidence* from others.

• Does heating the wax so hot actually provide any benefit?
• Am I changing the properties of the wax in a way which adversely affects performance?
• Would I get better wax penetration with a lower temperature, but using the ultrasonic cleaner?
• Could I save myself even more time with a wax+solvent mix like Squirt or Silca SSCL?
  
• How to get molybdenum disulphide & PTFE *into* the chain? It just 'clumps' in the wax bath for me.

[Edit: there are many things I don't know about. These are just some of them]