I have gone to hollow braid on all my salt water reels. There are three major advantages to hollow braid.
1-- Cost. Hollow is more expensive with original purchase, but you will never have to replace it. You can splice hollow to hollow so well, that you will never even notice the splice. The splice is actually the strongest part of the line, because the line is doubled at the splice. FG knots are great, but are still the weakest link. As you loose line, due to changing lures or leaders, instead of refiling the spool with new line, you simply splice in another section of new line. You can even splice in different pound tests, making the last few yards stronger, or weaker than the main line.
2-- No leader knot. FG knots are small and strong, but again, not as strong, or small as a leader inserted inside hollow braid.
3-- Hollow braid lays flat, making it far less likely to dig in to itself on a reel spool. It is also less likely to cut your hands if you accidently grab the line.
I have over 30 big game rods rigged with hollow braid, and floro or mono leaders, with a crimp used to attach hook, or swivel, making the whole set up complete without a single knot.
The disadvantage is it takes time, practice and different size needles to make the splices.
If I am in a hurray, I will simply tie a new leader on the hollow core with an FG, or Alberto knot, and splice a leader in when I have more time.
Hollow core line in pound tests under 100 have only been available for a few years. I am interested to see if the new 50 and 60 pound versions ever catch on with bass fishermen. Solid braid is almost extinct in the west coast salt water world.
I haven't tried it because I rarely use braid, for bass, and when I do I usually don't use a leader. Most of the time I use either use all mono, or floro.
Next time I fill one of my bass reels, with braid I will use hollow simply because I will be able to change lures, and cut off top sections without worrying about having to replace the line, or put on some kind of backing. Just fill the spool with the braid, and splice more on when needed. I doubt I would bother splicing a leader. An Alberto works with hollow as well as solid braid, and I don't think it would be worth the bother. If you absolutely want the strongest slimmest leader connection possible, than give it a try.