justej,
Congratulations - finding a diaper with the right fit is critical. A premium diaper that does not fit well probably will leak. I think you will be pleased with the A+.
Re thinness, you will find that the A+ swells up to become quite thick. Dress accordingly. I can wear the A+ or the Abena L4 with jeans and they do not show. With dress trousers I have to choose a thinner diaper like the Tena Slip Maxi.
As a cost-saving measure to keep the price down, the A+ omitted leak guards and a few other features. That makes it a little less desirable for someone like me who has bowel incontinence, but it is has good leg gathers and is very effective for urinary incontinence.

For bladder incontinence, the primary role of internal leak guards is to keep the urine in the main channel of the absorbent mat and away from the leg gathers until the mat has time to absorb it. That is useful for those with UI who tend to flood larger quantities of pee at a time, but much less so for those who dribble or pee small amounts at a time.
I would consider the A+ to be a very good value for the price.
--John