I have used a ton of Lee Loaders in the past and they work for loading a box here or there. If I was backpacking or living in the bush that would be the best tool because it is all 1 tool and 1 caliber. However... Also look at a Lyman 310 for your needs. I find those are a little better for what you are trying to do. In my opinion of course. You can get setup for several calibers pretty quickly. You can pick up the dies off ebay for a lot less than they go for retail. You will need a small and large handle set.

More of an investment but a better setup in my opinion. Still something you can keep in a tupperware bin or cabinet and not have a press mounted to a bench, etc.

Also understand that Lee makes a bench plate you can mount a press on and take it on/off a bench/table and they also make a free standing press mounts, etc.

I use to live in an Apartment. I was a pro at this kind of thing at one time.