Just to add to previous comments - I invested in the Zeiss 16-80. Yes it was expensive but the quality is superb and the 16mm end (24mm in full frames terms is so useful). I am retired and do not have money to waste but I have never regretted buying this lens. I was very disappointed with the kit lens. The Zeiss is so much better in sharpness,edge to edge,resolution and colour rendering.
Good luck in your choices.
Dennis