Personally, I would get rid of the cup. The meal plan is debatable as well.
While I can think of many ways to make it worth your while and I feel like one of the few who defends the quick service plan, I do not think it is best for you if you're staying Club Level.
I would say get your own cups (you can ask for ice at quick service locations) and if you need soda that you can use the soda from the Club Level area (can store it in a bag) and you can do that if you really need soda in the parks, but I personally would recommend water in the parks and stick to the soda any other time you're not in the park (or if you're in the park, relaxing, or eating something).
Also, while you do not have full on meals in Club Level there food is still involved and I would imagine enjoying the Club Level benefits and trying to make the meal plan worth your while would be too much on your plate. No pun intended. Depending on what you get for an individual meal at Universal it can be pricey, but some meals I personally feel you can split, especially since (in my opinion) felt it to be best to not load up while enjoying rides. The only time I have a decent / big meal is typically on my way out.
However, if you do not plan to really eat anything in relation to Club Level I'd say keep the quick service plan, but minus the cup.