Considering Swapping to Reta - Advice Welcome

As of today, I am officially 8 weeks in and down 30.5 pounds. I am taking 7.5 mg of Tirz split into two 3.75 mg doses twice a week.

I honestly can't say anything bad about Tirz. I love the appetite suppression, I love the results I am getting, and I love that it's finally made weight loss seem possible and sustainable. My husband, after seeing my results, began taking Tirz and has also lost 21 pounds in 5 weeks. He literally said this morning that he can't remember feeling as good as he does now.

With all of that being said, I'm seriously considering moving to Reta. The idea of muscle retention and actively increasing metabolism appeals to me, and I've been reading recent studies that suggest it could improve overall body composition with long term use. At the same time, I'm constantly asking myself why I would stop doing Tirz when I'm seeing such great results.

I would greatly appreciate any advice from those who have made the switch or decided not to.