It can be done safely by one person if you use a bit of common sense .
Raise the stand against the tree with a rope tossed over an overhead branch or the trunk, secure the stabilizer bar , ratchet strap the ladder to the trunk before climbing , then climb it to secure the platform . When lowering one by yourself tie a rope to the seat platform and toss it over an overhed branch or the trunk. Climb down , and then slowly lower the stand to the ground with the rope as you tip it over . The leverage provided by the rope will also help prevent back strain .