I agree...I only have four seats (not eight..)
And only THREE new computers with RAM & hard drive capacity out the wazoo, as I knew this was going to be a tough season anyway.
But the 2018 program has been has been completely unusable if there is more that one person using it at the same time. I've spent HOURS moving data files around to attempt to stay productive and it has been a challenge to make sure nothing has been lost.
Removing appointments from the display helped early on, but nothing helps right now. And the program crashes at random times.
It will need to improve, or I am moving on.