Amazon Echo Repairability Score: 7 out of 10 (10 is the easiest to repair):

The speakers (the components most likely to fail) are replaceable.

Separating components across three circuit boards improves modularity.

Adhesive is used in two places—the rubber foot, and the fabric shroud. Removing the shroud requires a knife, and you'll need to tape it back together.

This is a fairly complex device—and with no repair documentation available, reassembly is especially difficult.