With over a decade of experience in proteomics research, I can confidently say that the IonOpticks column is the superior choice. Its exceptional analytical performance in terms of sensitivity and reproducibility has allowed me to maximize protein identification in any biological sample. Additionally, the column is robust and can withstand hundreds of runs without significant loss of performance. The customer service team is outstanding, always quick to respond to any questions or concerns. I highly recommend IonOpticks columns to any researcher seeking high-quality mass spectrometry data.