Plainly, this is easily the best budget product I've found for standard decks owned by discerning, OCD, trading card game players. As shown in my picture, 60 cards plus 20 tokens/sideboard, double sleeved with KMC perfect fits and hyper mattes, are comfortably seated in the box with plenty of leg room. A robust, handy divider is included for those tokens and/or sideboard as well. They are not compressed at all (where the air would be pushed out of the outer sleeves). After this, cards start getting compressed, so you could probably fit another 10 reasonably well. After that, you will probably be risking card damage. So if you are looking for a commander deck solution, and you double sleeve your cards, this is not for you even though it advertises 100+ capacity. (if anyone knows of a good solution for that please reply to this review if you can) If you do not double sleeve, you're probably good to go.
Additionally, I'd be remiss if I did not point out that Card Kingdom has these boxes available at Ultra Pro MSRP of $3.99 in almost all the standard colors. (MTG artist versions will be extra) So, if you intend to buy a bunch like I do, definitely check out Card Kingdom. Since they do not have free shipping though, if you just need 1 or 2, Amazon Prime wanting $7-8 for this product may be a better bet.