We used lumen for a mammoth job. I was unhappy from start to finish and I am still unhappy now.
They are disorganized and had many days where one guy showed up, when several were needed. Their employees told us it was because they had booked too many jobs. Most of the companies they subcontracted were incompetent and several parts of our project had to be redone.
As a reminder of the poor workmanship and cheap materials, I get to enjoy a cold living room, as the windows they installed were second rate (confirmed by an inspector).
Don’t use this company for any large jobs. You will be didsapointed.