We have the maxi cosi toby and so far so good. We've been using it for a few months now and we've had no problems with it. I just loved how secure it is in the car, it wont budge! Also it was great for our LO who went into it at 6 months as he reached the weight limit so its all padded etc.
Tbh with you i didnt even know where to look, i just knew i wanted a maxi cosi as thats what make his first car seat was then i just went onto mothercare etc and compared different ones!!