I've never seen a Kadet, as far as I know, but it has been around for a long time. If it was bad it probably would not still be available.
It does have one 'feature' that I consider a negative for a beginner plane. It has a molded cowl on the front. New pilots tend to nose planes in when learning to land which tends to break cowls.
If you do not have an instructor lined up, put your zip code in the club search
http://www.modelaircraft.org/clubsearch.aspx and find out where the local fliers are.