This is a very traditional simple way to start with sprouting. I've had mine for 20 years I believe. I've also had a plastic one which got stained and the sprouts stuck in it. So I'd say this one is simplest and maybe even best. You can always clean the canning jar and rotate them out ... use the screen on multiple jars.
I had problems with the screens rusting, apparently I'm not the only one. Cultures for Health was excellent with customer service and did everything they could to make it right. For that they have my continued support but you should be warned that with this product rusting is a problem. Supposedly if you put oil on the rings that will prevent rust, this is important information that should have been included in description.
Response from CFH: Please note the rusting occurs from the jar rings/bands, and is transferred to the screen. The oil should help, yes. (Posted on 9/1/2015)