For our eldest we got the whole travel system thing a Jane’ Slalom I liked it as it had a disc brake up front, it was bloody massive and filled the car. the layback carseat was brilliant for trips to outlaws in Scotland as the daughter could lie flat to avoid the above issues.
For out second child we had adopted the isofix format and bought a Quinney Zapp, isofix base for car and Maxi Cosi seat and was brilliantly simple to use – if we ever have another baby we will probably use the same set up. the zapp coped with most things, if we were going walking/off road rather than drag a pram we used a rucksack style child carrier easier in crowds and your little one gets a birds eye view etc