afaik dextrose , brew enhancer or sucrose is all the same thing, the brew enhancer may contain a nominal quantity of malt extract but hardley enough to ensure a full body.
the only benefit of using the simpler sugars is they may ferment out a little quicker as they are pre cracked, sucrose being a complex chain of 1 x glucose/dextrose and 1 x fructose molicules..
if your after a fuller body then invest in LME or DME both available from your local hbs.
happy brewing..