ive never had an issue with the yankee smells or the sooting or tunnling or anythin from yankee though other candles mums tried have had those issues
Generally speaking I don't have problems with Yankee Candle large jars. There is the odd bit of tunneling sometimes, and occasionally sooting, but if I use the accessories and tools I'm usually ok (wick trimmer, illuma lid and sleeve).
It's Wax Lyrical large jars I have problems with. I bought two at Center Parcs a year or so ago, they were shocking so I complained to Wax Lyrical direct and they sent me replacements which also tunneled a lot. I definitely won't be wasting my money on these again.