Most replies come on the second and third email, not the first. A sequence gives a busy person three more chances to answer without three more strangers in the inbox, because each follow-up sits in the same thread.
Buzzlist writes all four from the person's own company website and role, not from a template. Ten AI credits per person, or 2 if Buzz researched that company within the last 7 days. Revisions are 2 credits.
Sending is still yours to do: copy the emails, export them with the contact, or use your own tool. Buzz Send is available in the customer portal with a gradual sending ramp.