Sounds like a much better way to make it a lifestyle change which is what you are after. It will evolve and adapt over time. Most important is that you enjoy it and it makes you feel better/stronger so you keep it in your lifestyle. If the two classes for LHT aren't all that, you could always go to a 30-45 minute free weight routine at the same gym 2 x per week and use the other classes for intervals (sprints) and slow movement (easy paced cardio). Bottom line: It results in you feeling better so you consistently prefer and choose to do it over time.