[Wally]

I'm no expert, but the cage size seems fine, but the bar spacing should not be too wide. I would use two or three perches varying in sizes, and one could be the cement/sand type as they use these perches to hone their beak as well as toe nails. I'm not sure of the wood species either, I just use the Manzita natural kind. I do think the food is good. We share our dinner and breakfast with our birds as well [just has to be low in sugar, salt, preservatives, no caffinated or carbonated stuff]. They love the fresh veggies and fruit, just no avacado, or fruit pits or apple seeds. I always include a mineral/clay type of block. Some are fruit shaped and flavored.
Quakers are a flock/social parrot. The less time away from them the better. Our boy has two Amazons and a ring neck dove to keep him company while we are at work [none are caged together, but can see and talk to each other]. If you get one, make sure you leave a TV [PBS] on or radio, and an assortment of toys. These guys will go to feather plucking/mutilation if bored and/or stressed. A good site to go to is quakerville.com Hope this will help you...