The Comment field in Sugar objects, Account, Leads and Contacts is great in that you can collaborate from a specific record; however, the alert in the email tells the user nothing about the comment. If you are getting 1 to 2 per day, it's no big deal but if you get several a day it would be extremely helpful to note the record type and name.
For example: Your lead Joe Brown and the comment
or Your contact Joe Brown with ABC Company & the comment
or Opportunity for ABC Company & the comment
In this way the user can determine whether this should be actioned right away or can be actioned at the end of the day