The worst feature Troi, The Doctor, The Kid, Jordi's love life, and where "magic" is involved.
There is an episode in the last season where Jordi and Ro get "cloaked" by a Romulan device and they can pass through walls and tables, but for some reason cannot drop through the floor... wtf?? Here's a couple more:
They breath the same air and can speak to each other, but rest of the crew cannot hear them? WTF?
Jordi pigs out on food at the end of the episode because he hasn't eaten for two days, but they both remained hydrated somehow for that time?
Ultimately, the episodes that are good, are the ones that explore "consequence": Family, Inner Light, Preemptive Strike. Tapestry, Yesterday's Enterprise, etc.
My wife and I watch about 10 minutes of STTNG some late evenings, every few weeks, to help bore us to sleep .. it works! Better than Aunt Audele's warm milk.