fair. I have no experience with that box, but I do love the option of it and most swear they sound great. I have zero concerns with my plastic box but I'm not going to try to talk you into something you dont want but never hurts to listen to my set up so that when you buy the wood box, you can see how much different it could sound.
If ever intersted, just private message me. No worries!

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I swear, my cars are like a girlfriend.
Sometimes its a rough ride, sometimes its smooth motorin'.
Sometimes she doesnt like how i treat her and sometimes i dont like how she behaves.
BUT at the end of the day, she loves it when I am inside her.

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'91 850i
'05 X5 4.4i
'09 Clubman S