Trying to decide the route to take my brewing. First off, I'm not looking to go larger than 5-gallon batches at this point. I've heard great things about the Grainfather. My question is for those that may have used both...why go one way or the other. GF seems super easy and I like the thought of only having to clean one device vs 3 kettles. Why would anyone not use the GF (aside from the 5-gallon limitation)?