I can't say enough good things about this kit. It is a complete package, that includes the fret board remedy as well, which not only conserves but also restores old wood - make sure you use it on an untreated fret board though! The quick detailer does exactly what it says it does. It's a very effective way to bring a true shine to your instruments, however if you need a proper, deep clean then the cleaning agent with the polishing paste will do the job!
Buy two just to make sure you are stocked up. They do seem to last forever though. Only a minimal application is more than enough.
Word of advice. Use gloves for longer work. I noticed that my skin does not like prolonged contact with these products, but again that could be just me