I've been thinking about this quite a while and would like to make a suggestion. Sometimes people will say, "I didn't like XXX city, XXX airport is bad, XXX museum was a dud, XXXX country is a waste of time, etc. with no explanation. I'm left to wonder, did something unfortunate happen or was the city too big or small for the traveler's liking, there were no museums, they didn't like the food, or what? Sometimes a reason someone dislikes something is a reason why I might like the city or country. For myself, I've noticed that I occasionally will say, Oh, I loved Girona, Luzern, etc. without describing what I liked. I've tried to expand a little.
I also would like to get some opinions on telling an OP to take a look at a Rick Steves guide. I like different guidebooks for differing reasons, but one thing I think RS does well is list top attractions and rate them. All on one page. It would take someone a 5 minute glance to see suggested places to visit. But, I worry that it sounds condescending or rude to the OP. Thoughts?