You need to be a technical enough to manage domains and panel management (but not as involved as self-hosting).
They have decent support documents and responsive support.
They frequently have promotion for lifetime, multi domains, multi accounts (limited only by 10GB in storage size) email hosting.
I got mine in 2021 with 125 USD (one time payment). Hosted my work and family emails. During the period I only have 1 issue related to spam fighting and resolved with 1 day. With previous hosting price, MXRoute is already more cost effective after 1 year.