Hi, I wrote the Gro Baby review, fit wise I still love them, and it is great being able to just change the soaker pad if its just a wee and snap in a new one. Also *touch wood* we've never had a leak in them, the leg gussets are fab and we use ours as an everyday nappy for at home. They wouldnt last overnight, as Chloe wee's for England!!
The BG Organics are an all in one nappy, one use then wash, but did you mean the BG Flips, where you can change the Organic insert for a new one? I prefer the Gro Baby's to the Flips as the Gro Baby insert popper inside so no moving about, the Flips just lay inside. I think the leg gussets are better on the GB's too, plus I didnt like the outer feel of the Flips too much and they only have the 3 colours!! On the plus tho, the Organic inserts for the Flips do dry quicker then the GB ones, as they unfold flat, whereas the GB ones are a thicker pad.
The GB inserts do takes ages to dry without a dryer, it's not so much a problem as we have about 18 soakers and about 8 shells, the shells dry in a few hours indoors on an airer so they are ready to use again by the evening but as the inserts take overnight and some of the next day to dry (unless I put them on radiators) its good to have enough spare to cover their long drying time, or use a tumble dryer. I'm sure come summer when they're out on the line in the sunshine they will probably dry much much quicker!
The GB can be expensive to buy, I think they probably are a bit more expensice then the Flips, but I think the GB are better made and will be longer lasting, especially the covers. Now that Chloe's drinking more the inserts are getting really full so I've started to use the extra booster in it, but there's plenty of room to use anykind of extra booster really.
We couldnt get on with the Flips the fit was bad and they leaked, but she was a lot smaller then, we prefer the velcro for a tighter fit and I think the Gro Baby's are trimmer as the soakers are shaped a little, rather then then BG's which make her look more sumo like!!
If you can I'd buy a few of each, even preloved would do just to try (although not many people are selling Gro Babys as they are still quite new over here) you never really know which ones will fit your LO better or you'll prefer!
If you have any qs give me a shout xx