I bought a reversible car seat for my first and then hired a capsule with my second. I found the capsule really handy e.g if you just need to dash into the post office you don't have to get the pram out, you can just take the capsule and put it on the floor next to you and you still have 2 hands to do what you need to do.
It really is preference but I'll be definately hiring another capsule with my next bub.
Hope this helps, good luck.