I think there are some notes about string frame alignment. Sheldon Brown? Probably other sites too.
As far as truing, I do like truing in my stand, but I use a fairly simple stand. Dad made it years ago. This is my nephew trying it out.
It probably isn't much better than truing on a bike. One basically uses a pencil, pen, or BIC razor as a reference point. But, it is convenient, and it may be handy to have a stand rather than learning to true a wheel on a bike.
Note, front wheels and rear wheels have different spacing. This stand more or less springs out to accommodate wider hubs.
Just take it easy with the truing. A little at a time.