Monitor Vertical Speed = no problem, no reversal of climb/descent will be reqd.
Adjust Vertical Speed = may require a reversal of climb/descent.
I am sure no-one on here is confused, but it is extremely important to recognise the difference between 'Monitor Vertical Speed' (a preventative RA) and 'Adjust Vertical Speed' (a TCAS 2 corrective RA). There has been at least one level bust in UK airspace due to confusion between the two, and crew misunderstanding of what is required of them: (answer: the same thing in each case - follow the V/S guidance!!)
1. Always follow TCAS guidance
2. Don't try and be clever
3. Notify ATC when able
4. Ignore their subsequent instructions unless TCAS has announced 'clear of conflict'
5. If you think you are visual with the conflicting traffic, see rule 1.