I've got 5 acres so lots of room to run and play, though I'm still keeping him on a 25' retractable leash as he does have his 1 year old puppy moments running FAST and lunging.
After 7 days of ownership, the command Sit is starting to sink in, especially with a treat in your hands.
I rescued him for only $175 from a local shelter, microchipped, shots, and they cut his balls off.

he's about 50 pounds.
He is working out FANTASTIC. and the first adolescent pup I've had in 40+ years. oh boy can he be a bundle of energy!