I understand that 日本はどうですか can mean a suggestion, like somebody is wondering "where should I go on vacation?" and somebody else answers "日本はどうですか？" - "maybe Japan, how about Japan?" but I tried making a sentence meaning "how do you like Japan?" or "how is Japan?" and I feel like 日本はどうですか also works.
Am I right? Could I ask 日本はどうですか to ask somebody visiting Japan what their impression of Japan is?