We use metcals almost exclusively for about 15 years now. You won’t be disapointed at all. In fact, their use can greatly reduce board damage in our experience.
I don’t redcall which unit, but one does use different tips than the others. The MX unit has a bit better specification on it’s ESD control I believe (from memory).
For a casual user it’s hard to go wrong with any Metcal.
Steve