I personally recommend it. I have read The Loophole and The LSAT Trainer by Mike Kim. The LSAT Trainer rarely stuck with me and the diagrams were difficult to follow. However The Loophole alongside 7Sage helped solidify my understanding. The Loophole focuses more on the overall understanding of the stimulus, question type and answer choices. Whereas 7Sage i realized were more into the details.If you're struggling with answer choices, the last chapter of The Loophole is VERY helpful! It helped me eliminate the wrong answer choices in a quick manner!

Also, I would say if you do decide to try it out, don't wait till you perfected blind translations. The Loophole also helps with that during the first few chapters.