The Octopus is nice for what it is. It's a cheap entry RBA to get you used to working with them. I own one and it's pretty nice, but I had to bore out the air hole as it was just too restrictive. The only other gripe I have with it is that there's no drip well and the air holes are in a really horrid place, which begs for juice to drip.
For $10 or less, it's nice. For $3-$5 more though, I'd go with the iGO-L, if it was available as an option

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