I will change my strategy depending on the players at the table and the current stack sizes.
Playing at low micro stakes MTT. I run into a lot of limpers and have done quite well against them. I find it best to try to see the flop as cheap as possible with these types of hands a this level.. and if that means limping then that is what needs to be done. I do not suggest open-limping often, especailly from late position and prefer limping behind after multiple limpers.
I will mainly limp behind only with speculative hands like Low-Medium PP or Suited Connectors.
These are hands that will benefit being in a multi-way situation and will be easy to fold if the flop does not suit the hand or we do not catch the set with the pocket pair.
This will work the best on tables with very passive players who are happy to just limp along.
Against more aggressive players or with a shorter stack, then I would just avoid getting into these multiway pots, and either raise or fold, depending on the table position, stack size, player stats, and action before us.