I use mine all the time, very valuable tool. Get one.
Yesterday I was going through Jane's Honda manual to do some woprk on her bike (to get it to go slower than mine

) and I could not believe the difference in the manuals. The Honda shop manual is far far superior to the Trump one. There is literally every single spec you could need, even dimensions for every single part on the bike. You could use it to have a machinist make almost any part you needed. Tons more technical information and well laid out. AND all part numbers.
On a scale of 1-10 for information:
Honda manual 10
Triumph manual 7
But, I still recommend getting one if you plan on doing your own work.