My 4 year old son (usually "glue pot") has shut himself up in his room and no longer drops his castle ... that says it all! All the positive reviews about this castle are really justified, so I do not know what to add. The strength also seems correct, although some parts of decorations can break easily into the hands of a child of 4 years (the keep flag carrier has not taken more than 10 minutes), but the biggest will probably do not that kind of mishap. Given the number of evaluations mixed regarding a supposed problem mounting and enclosure closing, I admit it was a bit cold when placing the order. Well I can confirm that this problem does not exist to date (September 2012): I actually rode the castle with the son in about 1 hour (as estimated by Playmobile elsewhere, even going rather slowly and answering thousands of questions in the second by my son on every part of the castle ;-) Given the number of comments on this issue, I do not doubt that there existed one day, but you can now consider that it is over and therefore order this product eyes closed, to the delight budding knights!