In our lab, the GC×GC-MS device installed by LECO has been a game-changer for metabolic profiling, especially in our multiomics study exploring the intricacies of obesity in young adults. Its sensitivity has been crucial in identifying and quantifying metabolites, even at low concentrations, essential for uncovering subtle changes in the metabolome. Our experience with PEGASUS^® BT 4D device has been exceptionally positive, significantly due to the exceptional support of the service team, ensuring the smooth operation and optimal performance of our instrument.