I'm posting here on behalf of my girlfriend who is looking for her first keyboard. She played classical piano for many years but now has no room for her old piano and needs a portable alternative. So obviously the focus is on replicating a real piano rather than something like a synth. I know she needs a full set of keys, good weight, etc.. don't know much else that would be important to look for otherwise.
Budget around 400, new or used, can you offer any suggestions?