I had no luck keeping humidity levels up in a table, but when I switched to a vivarium it became quite easy. If humidity levels have anything to do with your decision than I vote vivarium.
You are welcome. Just to elaborate: I like to keep babies and younger ones in a more humid, more stable environment. With adults I like to provide the largest space possible (or reasonable) and this is easier with an open topped tortoise table. Adults that are well started and nearly grown don't need the humidity that babies need. They can also tolerate a wider range of temps.
With all tortoises, time in a secure enclosure in the garden is best whenever the weather permits.
thankyou for your advice tom i want to learn as much as possible before i go and get alittle one and everyone is so helpful on here so im sure i ll learn loads