More than adequate.
There's nothing wrong with his bed for the price, don't expect too much. It's decent for a decent amount of time. If you plan to use it longer term you can go onto the Jay-be website and purchase more springs. A tip, if you reinforce the bed with extra springs before use you're going to get a lot longer out of it even with nightly use. It's comfortable, sturdy, and an adequate size for a 5ft 11in, 14 stone man. I'd recommend.