It's about time to move my daughter (9 1/2 mo) to a convertible car seat. We are looking at the Orbit g2 system because we are hoping to avoid having to purchase more than one convertible car seat (at least for now). It seems like even though the Orbit is more expensive, it has great features (that will help this 5'1" mom load her kid into a big SUV) and with the purchase of one other base, we would spend less than we would if we had to purchase two comprable seats without the rotating feature.

For the next year or so, my daughter will be cared for at home by a nanny, so most of the time when she is in a car, it is with our nanny. My daughter rides in my car on weekends and evenings. At some point when she goes to school, my daughter might have to switch between my car, the nanny's car, and my husband's car, but for now that is fairly rare. I think at most we would need to switch the seat from two bases a couple of times per week, and each Fri evening and Mon morning, which is what we currently do with the infant seat (graco snugride 30) and two bases.

Is it realistic to continue the one seat, two base strategy for a bigger, more cumbersome toddler seat? or should we just buy two seats?
Is anyone out there using the g2 toddler seat with the base? pros/cons of this system? do you love it or hate it?

Any and all advice on this topic would be appreciated.