RE: Ground or Tree?
I also have an Outhouse blind , and hunt from the ground only for now . The Outhouse is not well suited to vert bow hunters , although a crossbow will work well if it's legal where you live . I don't discount tree stand hunting , in fact I bought myself a starter climber to practice with . Once I get the feel for it I'll buy a better one . Both have advantages and disadvantages .
I chose tent blind hunting for portability , and my terrain is also wooded . I can set up in 5 minutes flat in near complete silence , and since the blind is camo I don't necessarily have to wear camo . This allows me to focus more on scent control . If your blind's camo pattern matches your surroundings it would take a very observant deer for you to get busted , I've had them walk to withing feet of me while in mine . The same cannot be said for a tree stand unless you cover it with camo and select your tree well . A tree stand sticks out if not carefully placed , and deer do look up .
A blind also provides protection from the weather , which allows you to hunt more days that you normally might not . This allows you to see more deer , and therefore more chances to score . They don't always work in more open terrain however , unless the background gives some breakup and the deer can't approach from behind .