I think these are rather pricey for what you get. However, if you own an orbit baby and looking at these, then that most likely isn't too much of an issue.
These are great, they integrate well, stow away on the stroller and don't get in the way when the stroller is collapsed. Well thought out, although they are quite simple. As far as adding width to the stroller, it adds about 4 inches more on each side to the wheelbase. Hasn't been too much of an issue so far...

Living in New York City with a baby is difficult when I go shopping. Maneuvering a baby carriage and shopping basket through narrow aisles is always a challenge. This is followed by the challenge of tying the shopping bags to my son's carriage and taking everything home without tipping over. When I first saw this add-on advertised my eyes lit up!

Pros
- Easily snapped on to carriage without any tools.
- Opens easily and folds up very quickly and easily.
- Holds about one bag on each side.
- Feels solid and can hold three 2-liter bottles of soda.
- Center of mass is below baby which increases stability and prevents tipping.
This is great because I still use the handles for even more bags.
- Builds muscle with toddler seat, fully loaded with bags and of course toddler.

Cons
- Carriage is a little wider, which can't be helped. I call it the street sweeper :-)
- Could be a little bigger.

Overall I think this is... Read more

I have the orbit baby stoller system with the carseat and bassinet and I am very pleased to finally be able to add these to the system. Yes, they are very expensive for what you get but they sure do come in handy. I shop mostly at farm stands and local stores and its great ot slip all my purchases into these as I go around the store.

PROS
Spacious and stores flat against base
Stays on stroller even when folded
MUCH NEEDED ORBIT STORAGE

CONS
Have to be buckled SUPER snug or else they get caught when you fold the stroller
Yes, they are VERY expensive considering they should have been included in the first place
Stroller + panniers makes for one VERY WIDE LOAD. Ha ha, people dive for cover when they see us coming, you take up quite a bit of room.