1. The main reason this gets 2 stars is: echoing other buyer's issue with this product, having almost completed building this version (I have already built the non-XL version, including various attachments), it is missing the Back Ramps file that the non-XL version has. Not sure if the non-XL version will work with this. I know this has nothing to do with it, but I Kickstarted the product, and I think the early access members must have missed this.
2. I know the creator of this shows exactly what is included and I am happy to pay for it and to be able to print it and play with it, but I do wish it was more modular/infinitely modular. Don't get me wrong, the design is brilliant, and you can print everything with PLA, and it works amazingly.
However, when you are all finished with the the XL version (20% bigger), it's ultimately not that big and I think the designer missed out on a really great opportunity to make this infinitely scalable.
With how many other aspects (including the name of the website/organization) that seem to encourage people to make their own designs, a jumping off point could be really helpful for someone wanting to make a longer ramp, or a curved ramp, or a spinner, given simply a basic CAD file with the dimensions of the holes/pegs. The CAD files are available to do this, but there is a missed opportunity to 'sell the shovel', so to speak. and build a community around this (see example: Hextraction).
I wish the creator the best, but this is probably a project, at least for me, that missed the mark a bit. I imagined learning how to make something like this myself and should have tempered my expectations. Maybe this is the time to do so, and maybe I'll check out the courses to learn just that!