I've had the same Solo case since 2001. It has held up through many beer spills and overall wear and tear.

I imagine it could be machine-washed, due to it's durable material, although I have not done so.

Pros:
Darts are stored in a ready-to-use assembled state.

Plenty of storage space for shafts, flights, sharpeners, etc.

Con: Big and bulky.

Strongly reccomended for dart player who enjoys having enough supplies on hand, and avoiding the need to assemble your darts each night.