I've been to Vegas a ga-jillion times and prior to staying at Encore my favorite hotel was the Venetian. But after staying at the Encore for 5 nights- this is hands down my all-time favorite Las Vegas hotel. The rooms are incredibly beautiful and spacious! The service is impeccable! I am a huge neat freak and this is hotel's cleanliness standards were the most amazing part of my whole Encore experience. The hotel was cleaned up and down everyday with an anal-retentive attention to detail. They dusted the chandeliers, wiped off the slots, cleaned the hallways, carpets, and elevators daily! It was so shocking to see so many workers cleaning the hotel nightly. I loved the maid that cleaned our room too - she was always super thoughful with putting new bars of soap when it looked a tad bit smaller or just organizing things in the bathroom. Ok that's enough about Encore's standards of cleanliness.
I highly recommend staying at Encore and signing up for a Red Card (it's free). That way you can get be notified about deals on rooms and earn resort credit. I received an email and stayed at the Encore for $99/night! I had 3 different $50 resort credits so a few of my nights ended up being only $49/night! If you're going to Vegas, seriously consider Encore! Its a fabulous hotel!