I have the 4018 model, the difference being it’s yellow and only 5.2 Amps vs. this one which is listed at 6.5 Amps. Same price I paid. Interestingly this version is not even on Wen’s site.
That said, I’m very happy with the Wen pole saw. Sturdy, powerful and gets the job done. It also appears to be an upgrade from my Harbor Freight version, with a better mechanism to tighten the chain. It also came with a small amount of chain oil!
I’d recommend this to anyone in the market for such a device.