REWARDS:
1.MYTHIC+ 15 completed.
2.Guaranteed 411 ilvl gear from your Great Vault weekly chest.
3.Chance to get 398 ilvl gear from the end-dungeon chest (boosters are also sharing their rewards when it's possible).
REQUIREMENTS:
1.70 level character in EU or US server.
2.At least 350+ item level.
3. You should accept that sometimes boosters can not trade certain items due to game mechanics restrictions.
ETA:
Average Execution time: 20-40 minutes