I have no real complaints about this tour however please read this carefully.
Due to an exceptionally busy time at work by the time I tried to book advance Neuschwanstein Castle tickets on the official site four days prior to our arrival they were all gone. Owing to a tight holiday schedule I decided it was too much of a risk to turn up at the ticket centre on the day to be told there was no tickets or the next available tour was 4/5 hours away. For this reason I booked this tour to guarantee entry for me, my wife and 4 year old daughter.
On the day we arrived at the LA hostel in our hire car where we met the driver/ guide. He told us it would be best for us to take our own car so that we didn't need to wait until 1 o'clock to leave we were the only people on the tour that day which suited us as we were time pressed to travel to Garmisch. We followed him on the 10 minute drive to the ticket centre where he got our tickets and gave us the 6 euros it cost for the parking at the castle. As per the info on the booking page he was not the castle guide and left us to it.
In a nutshell this tour served us the purpose of guaranteeing entry to the castle, however we paid 76 for the privilege. If tickets had been available on the official site the cost of tickets, booking fee and parking would have been around 30.
Although I can't say for sure because we went in our car I presume that if we'd gone on the bus we'd have gone the same route and like other people reviewing have said it would really just have been a super expensive 10 minute each way taxi ride.
I'd suggest you consider booking early from the official ticket office although as above if the tickets are sold out this tour will facilitate guaranteed access at a late stage.