I bought a wren pump after reading multiple reviews of various wearable pumps. I've had problems getting my baby to latch so pumping multiple times a day. The pump is really easy to use and clean, you just have to make sure it's on correctly over the nipple as I've made this mistake a couple of times and not got much out, you can do a lot while wearing it, just be careful not to lean too far forward as this may leak, but I feel like that would be hard to avoid with any pump. I contacted customer services through the online chat as I had needed to replace the valve quite quickly and wanted some advice they were fantastic and really helpful and even sent me replacement parts out, I also ordered some spares and they arrived the next day. The customer service is second to none