Nice clean looking lines on the bowl, the use of the buffing system does not take any prisoners if there are any residual tool or abrasive marks and I can't see any in that piece.
You can to some extent select the amount of apparent gloss level when buffing,
Main advantage when using a buffing/abrading system is that you can remove a good many of the sealant streaks and dust blemishes that are hard to avoid unless extremely careful when sealing the wood.
Just applying a thin sealer coat and minimal buffing time to obtain an even, not necessarily grain filled surface you end up with a shinny smooth looking surface.
If like KimG you concentrate on adding sealer or additional lacquer surfaces to fill the grain and provide a depth of hard 'glaze' surface then the gloss can take on the appearance of considerable depth.
I don't know why, possibly because the buffing/abrading gives an even surface, to me the high gloss obtainable looks more akin to a glazed porcelain or glass rather than the plastic look that you sometimes get when just using a coating of clear lacquer or varnish.