I have a GroVia AIO and two old GroBabyies AI2s, which the GroVias are a great improvement on. I use both in my diaper bag because they are small.
-They are very trim. Which trades off into not super absorbent. If you have a super soaker, change sooner.
-The AI2s, don't keep the poop in the insert, the whole thing needs to be changed. But that is any AI2
-They are my favourite hybrid. The disposable inserts are the best on the market and the only ones with containment. No competition between this and gDiapers.
-My AIO is wearing out in the cotton because it always folds in the same places in the elastic. All natural fiber AIOs do this there if they have elastic casing.
-They fit for a surprisingly long time, given how trim they are, but can be tough to get to work with larger prefolds. But would be really nice with the new GroVia Gauze prefolds.
Incidently, I air dry my covers and most are dry before the dryer is finished with the inserts.