I love mine, they aren’t cheap for sure but worth it (in my opinion anyway). It isn’t any one thing, they are just a collection of the right parts, with the right quality making a superb Jazz. The pre-amp adds an extra dimension as well. If you already have a player and the only issue is the output then why not look at a pickup change? I have a Squier Jazz that I use when we play certain pubs that are, shall we say, ‘less reputable’. I changed the pickups on it and it sounds very nice.