The Antlers take a bit of time to get into. If you've just entered the festival you might be tempted to carry on past them. There's no nice way of putting this, if you don't click with their sound then it can be very boring. Glacial soundscapes, lots of "oooooooohs" and a generally slow pace are present in most of their songs.
It's best to lay-back to, to let it sweep over you and gradually infiltrate your senses. You'll probably zone out and as they reach some cinematic climaxes things will all make sense. Or you'll be even more bored. The bass is often provided by the synth, which provides a massive wall that the remaining members push forwards.
On closer, 'Putting the Dog to Sleep', Timothy emphatically plays one jarring note on his guitar every few bars for the most part. It's a sweeping epic blah blah, similar to the rest but very good. The Antlers were decent and the hype around them is not without merit, but they're definitely not for those with a short attention span.