I have owned this Extra Large cage for my two greencheek conures for about two years. Technically, the birds only use the top portion of the cage 95% of the time, but I still like the cage. It moves easily on wheels, so I move the cage from one room to another as needed. Installation is not hard, but the final stage putting the top of the cage together helps tremendously when a second set of hands are used. Periodically you need to have the cage broken down and cleaned thoroughly. With that said, the daily cleaning chore is made easy by having a tray on the bottom of the cage. It just needs two full newspaper pages spread out on the bottom of the cage.
You can install only half of the cage together if you want to create a shorter cage. This comes in handy in the winter if you want to cover the cage all the way. Because it is so big, the cage cover typically covers most of the cage, and your cage cover will be primarily sheets or light blankets to prevent a draft and to promote sleep with a dark interior.
The side doors which are not strong enough for some birds were adequate me. My pets never tried to open these side doors. Only complaint for the side doors is the tight hinge trigger similar to one of a mousetrap. If you let your bird in or out of that side door, be EXTRA careful as it may spring back on the bird and kill it as it is coming or going from that entrance. I use it mainly to get access to the food dish and water dish for food changes.
Finally, the perches are simply bird food, and will get chewed to pieces in a matter of time for most parrots. The good news is that you can replace them as needed with wooden dowels at your local **** ****** for about $* to $* each, depending on the diameter and density of the wood.
Except for the room needed for this cage (it simply is larger than imagined), if you want your bird to have plenty of room to roam and not feel too confined, then feel free to spend $*** - $*** online for this cage.