You can't go wrong on any scrapper.
You really can't go wrong on any Shield scrapper. 
Oh hells yeah it's good!
It's been the most fun to level of my many scrappers so far, and when IO'd out to the gills, it can be an absolute beast.
That said, Nihilii is right. All scrapper combinations are good because they're so well balanced and so nicely combinable. There are definitely better and worse combinations for different tasks, though, so if you have some idea how you plan to play and what you want the build to do... as in, solo vs. teaming, AoE vs. single-target, low budget vs. high budget, survival vs. mass destruction, active vs. passive survival, and so on.
"That's because Werner can't do maths." - BunnyAnomaly
"Four hours in, and I was no longer making mistakes, no longer detoggling. I was a machine." - Werner
Videos of Other Stupid Scrapper Tricks
i just came back to the game and was intrigued by a broadsword/Shields. Is this combo any good?