This is the narrowest car seat I have been able to find. We have been able to fit 3 seats across in our Subaru Legacy - I don't think we'd be able to accomplish that with any other seat. The seat is heavy, but solidly-built, and I felt comfortable bringing two seats with us when we traveled internationally (we put the five year-old in a booster for travel purposes). Adjusting the straps is straightforward. Our two four year-olds are able to buckle themselves in and out (though not adjust the straps), which may be both an advantage and a disadvantage.