If you're there for the duration of every breakfast and appetizer period, in my opinion it's too much. If you're sitting there languishing over your third plate and people are coming in, finding nowhere to sit, and leaving, you've been there too long. If you're using it as a bar all day long, every day, including repeatedly during periods where the alcohol is not out, I personally think that's a bit much. If you jump up and run over as new items are being brought out, to me that's just rude and crass. Hopefully just the fact that you care enough to ask means you'll know when it's "too long".
Personally, I will never understand how anyone can eat every, or most, meals in the lounge for multiple days. There's nothing there that replaces a good restaurant experience. That's just my opinion though. We enjoy table service meals on vacation a lot more than lounge bites.
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