This is a good shredder but not as good as I was anticipating from the description of shredding 150 pages. Yes the document shredder tray holds 150 pages and then feeds them into the shredder one page at a time. That takes about 11 - 14 minutes to shred 150 pages. After 45 minutes of shredding the shredder needs 40+ minutes to cool down. That is about 750 pages in two hours. The shredder actually shreds more pages per hour by manually inserting 8 - 10 pages at a time. The shredder can handle 8 - 10 pages manually at the same speed it document feeds one page at a time. The best solution is to get two shredders and manually feed them both at the same time. P.S. Have big trash bags handy because the cross cut shredder does an excellent job of keeping things confidential by creating small fluffy particles. The bin needs to be emptied somewhere between 250 and 350 pages. Maybe the next version will document feed three to four pages at a time with a larger trash bin for a strategic advantage. The shredder is a good shredder for the price. Just don't expect the document feeder to shred a handful of 40 pages in less than a minute.
I bought this unit because the smaller one that I had just kept jamming as I put large amounts of a paper through it. This unit is expensive but worth it truly a work horse of a shredder!
Shredder is heavy duty - gets a lot done. It is quiet. It has an automatic feeder which I appreciate when I have a stack of paper to shred. I also like the safety switch since my small grandchildren like to touch buttons. It's the best shredder I ever owned.