Street vendors and shopkeepers were on our back all the time. We got ripped off more than once. But hey, what can you expect in one of the most touristic towns of Peru?
In my own opinion, if you manage to keep the hasslers off your back, it’s a nice place.

PS - Tip for future travellers: on your flight Lima-Cusco, sit on the left side of the plane (and on your flight Cusco-Lima, sit on the right), the view is awesome!