We have been searching for a better solution for sterilizing and knew buying one of these was the right investment. I recently saw one selling used on FB Marketplace for almost the same price Midwest is selling these for! It sold before I could get it. I Called Midwest and they had one 310L in left in stock. I was able to put a deposit and they held it for me while I got my funds together. We just set it up and was very surprised how simple it was. Everything fit together perfectly. They don't mention this but these are the new 2nd generation units with new features and upgrades. We have been using our unit for a week now and it definitely takes some fine tuning to get the right times for our 6lb bags we do but it couldnt be easier. Just set your temp, timer and hit start! The hard part is configuring the bags inside to optimize the space. Overall well worth the money and investment!