Both are solid pumps, but they do serve slightly different needs. The Medela Swing Maxi is known for being compact and lightweight, and you can switch between single and double pumping without any loss in performance, which is quite convenient if your pumping routine changes. The Spectra Dual Compact is a decent option too, though some mums find the hands-free setup trickier to manage, and a few mentioned their output was actually lower compared to when they switched to Medela. A friend of mine who pumped for over a year swears by Medela for consistency and ease of cleaning, which matters a lot when you're doing multiple sessions a day. My lean would be toward the Swing Maxi if portability and flexibility are priorities for you, but if you respond better to the Spectra's suction style, that's very personal and worth considering too.