One of the most noticeable advantages is the direct connection as a complement to GSheets; this gives you the freedom to manage your databases and make the mass mailings you need. Even in the free version, it offers some reports and a limited amount of messages. Review collected by and hosted on G2.com.

Even though it seems to be a simple plugin, I failed the first time I sent massive messages; however, after a short time, I understood how it works. The price is reasonable. However, I think other plugins in the Chrome Store do the same with slightly lower prices. Review collected by and hosted on G2.com.