My wife has been talking about getting a new range with a convection oven
in it. Is there any real advantage to a convectiion oven, or it is just
some advertising hype ?

Our daughter (which does not have one) mentioned that the cooking recipes
will have to be changed when switching ovens. Anything to that ?

Any recommendations on what brand to get ? The local stores seem to have a
LG on sale for around $ 700 to $ 800 and the ratings at Lowes web site is
very good for about 300 ratings.