Ithaca sold 1,495 shotguns in 2014, Mossberg 371,367, and Remington 413,534. Ithaca has risen from the grave twice already. Their much heralded new products have failed to materialize. What's that mean; I don't know.
I do believe the new Ithacas are as good as the old ones even though they mostly have interchangeable barrels now and use a lot of CNC machining to replace hand labor.
The first modern repeating shotgun was the Remington 11-48. It ushered in truly interchangeable parts, and effective use of stampings, and it worked well and was durable, and was able to be built and sold for a profit for less than the competition. The 870 wasn't far behind, and the Mossberg wasn't too far behind that. They ran the Model 12 and the 37 out of the market; Ithaca twice. The older designs did not offer any advantages in functionality over the newer designs which sold for less money.
They all work, and so does the BPS. If the idea of machined parts makes your heart beat faster the Ithaca may be for you. But, though they all work they all feel different, and the bottom loading and ejection of the Ithaca and BPS is loved by some and not loved by many others, including me. I had 3 BPSs that never missed a beat, but I could never grow to like that feature.