Any time strings are changed, set-up should be revisited, in fact I will do it every couple weeks or so, even with the same strings on (weather changes, strings aging, etc) ... a sight down/up the neck, and then playing several positions will tell you if there is something to be addressed with relief or string height, but that is pretty much a preference thing ...intonation is not something based on taste, and needs to be accurate, and should be checked ...you will probably never get it set perfect, but as close as possible, with a "happy medium" in all areas of the neck is what I opt for ...
if you are uncomfortable with any of this, have it done for you, or better yet, learn the process (or have the person teach you) as it will put your mind at ease, and actually in some ways may improve your playing, help your ear, and give you confidence ... its not rocket science, but the right set-up makes a big difference and not everyone is as good at it as others ... but if you do your own, you will at least know who to blame, if you have a complaint

...JMHO