Rocky,
Toons are great for what you are wanting to do. They are very stable, very easy to get in and out of on the river(you just put your feet down and hop out of the seat) and much more compact to transport to and from the river. I can only speak for myself but I personally much rather have my wife in a toon than a canoe or yak. They are slow, tough to paddle in frog water, you could never go upstream, they track like crap and are heavy and bulky compared to solo yaks or canoes.
If your wife has any reservations about floating down the river she will be happiest in the toon. Much less likely that she capsizes or takes a spill getting in and out and we all know a happy wife on a fishing trip means more fishing trips.
Sean