So there are different ways to use zwift. The first is to ride for fun (various courses, races, social, etc) and the second is to actually incorporate a structured training regiment within it. Although there are training plans in zwift, I often incorporate my own while riding on a course of my choosing. If you are smart about it, the indoor training will make you a much stronger rider. Indoor training is convenient, efficient, focused, and you are in control of the conditions. I try to get outdoors as much as I can too, but one is not necessarily better than the other. They complement each other. I can accomplish much more in 1hr on the trainer vs. going outside fighting with traffic and stop signs...not to mention the convenience of being able to do it when I get home late from work, or if the weather is not cooperating. Sounds like you are looking for something like Sufferfest, but it comes with a subscription as well.....so the question is how do you incorporate that training aspect into a platform you are already subscribed to. I'm also on smart rollers, so I'm actually riding my bike and don't have the artificiality of a fixed in trainer.