I did not use the Plus plan, but based on what I have read about it, it had up to 50 hosts and up to 100 participants per meeting. It also provided 5 GB to store recordings in the cloud. The Starter plan has up to 50 hosts, up to 150 participants, and the same 5 GB of cloud recording storage. The Business plan has up to 100 hosts, up to 200 participants, and 10 GB of cloud recording storage, but other than those limits (and, of course, a different price :)), in terms of features (toll dial-in etc.) it is the same as Starter. If you were feeling OK with the limits of the Plus plan, then Starter seems to cover your needs.
