No issue with check in. We got there very early and were able to store our bags. The room is located in Bldg 4. I may be biased, but this is where the lockers were and we loved it! Not to mention how convenient the room is to any amenity you could ask for - the hot tubs, heated pool, and just a quick walk through the skywalk - the game room, Spencer’s restaurant(pricey but convenient), market store, and so on! And if you wanted to explore Breckenridge, highly recommend using the resort shuttles. Downtown Breckenridge is pretty busy and you don’t want to get stuck in traffic or have to pay for parking (Ubers are pricey for such a short distance, too) The shuttles use a handy app to track them so you can coordinate when to meet them at designated stops. (They’re also great resources for restaurant recommendations - whether it’s the driver or other passengers!)