1. Have you considered Planning, and your neighbors?
Another major purchasing decision for a pool cover is that of the overall height of the cage. This is partly driven by aesthetics and some practical considerations. If you want to buy retractable roof enclosure then you can explore https://www.coversinplay.ca/pool-enclosures-design.html.
Covering a low profile pool is clearly less visually disturbing, both for oneself and neighbors. And also generally do not need planning permission. Even though it's still feasible to notify your local planning office to make sure you have the right agreement.
The full greenhouse enclosure has the benefit of being able to keep walking around your pool even with the greenhouse enclosure active, but planning permission may be needed.
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Beyond this, there are clear budget problems, with a full height cover roughly double the cost of a low profile cage.
2. Is your pool accessible for shipping and installation?
Another aspect that is often overlooked is having a pool greenhouse enclosure, which is shipping and installation. You need to consider how easily the cage is sent to the side of your pool, and also how much space you have for the installation team to work putting the cage in place.
Many low profile attachments now come almost flat packed so there are generally some problems with access. However, for larger greenhouse enclosure, individual modules are generally sent ready to be assembled, and therefore more space is needed.
3. Can you easily maintain your pool?
When planning the position of your pool greenhouse enclosure, keep in mind that you still want easy access to the filter cover or lighting point. This is especially true if the system plan is tracked, and your measurements need to take into account these access points.