Being such a TNG-era Braga apologist for so long, I never thought I'd find myself in this position, but I gotta say...let's not get carried away here. I'm all for giving him more credit for his TNG work than he usually gets due to the overabundance of people who blame him too much for the show's downfall, but the reality is that he did have some negative influence/writing tendencies on that show.
While a lot of his writing was brilliant in the TNG TV era, he was definitely limited in the range of subject matter for his stories, and his weakness was that he had a bit of a fetish for 'weird, surreal shit happens'/'someone goes crazy or has psychological issues'/'the holdeck goes crazy' or some combination of those, many of which were just too ludicrous to make good drama and/or be taken seriously. For example...
"Realm of Fear" - Barclay has a psychological fear of transporters (the only Barclay-centric episode I don't like). Much less interesting than McCoy's frequent (and hilarious) transporter grumbling in the original "Star Trek".
"Schisms" - Riker, Troi, and others are abducted by aliens and this causes them to have freaky dreams that drive them crazy.
"Birthright, Part 1" - Data has freaky dreams.
"Frame of Mind" - Riker acts in a play about a guy who is going crazy, which causes him to go crazy.
"Phantasms" - Parasites invade the Enterprise and affect Data, causing him to have freaky dreams that drive him crazy.
"Timescape" - The Enterprise is frozen in time. Data, La Forge, Troi, and Picard investigate. Weird, surreal shit happens.
"Parallels" - Worf hops around from one crazy parallel dimension to another. Weird shit (like hundreds of Enteprises from different universes co-existing in the same space) happens.
Some of these are fun and entertaining enough, but in general they're just ridiculously nutty, and a few are absurd to the point where they're just lame.