If you have outfitted your SN8 with a better focuser and expensive camera, you will need some protection. This product works as advertised. I dont know how long it will last as I have only had mine a few months and it spends almost all its time locked up in the travel case with the SN8. It looks rather durable. It isnt cheap for a bag that goes over your scope. If you go to star parties and leave your scope set up all day long, you had better get something similar to this. I knock it down a peg for costing too much in my opinion, but I dont know of anything better.