Quality: Horrible; doctors are cowardly and have the habit in pointing their finger to another, delaying medical case, making medical case more complicated, good at dramatizing their skills - very dangerous, avoid at all cost especially if critical case! If you ever hear news from word of mouth that GH quality is first class, that news was already long expired.
Friendliness: Very good at dramatizing, be really careful. Question smartly, don't let them take advantage of you!
Value for money: Even if it were free, if service is damaging, the value will be in the negatives.
Waiting Time: If you're not called after an unreasonable amount of time, ask the attendant at the counter. if they say 'not yet', wait for some time, then ask again. Keep asking till they acknowledge. If you never ask, you'll be waiting till forever. Oh, they also practice favouritism, so be wary of that as well.
Penang island no longer has doctors capable of holding their title well. If you ever encounter people praising doctors, then their cases are minor to mediocre. In other words, easy cases. So be very careful and smart when dealing with the medical people.