PB 3 told me they include the abalone shells in their PebbleSheen, so that's great. To add the beads would be another $1086. He didn't seem to think it would be worth it for my pool because it's small. Umm, since you have them, what are your thoughts?
I have lots of thoughts but often they are ignored so it is nice to have someone want my thoughts. J/K. Honestly I absolutely love the glass beads. It is hard to quantify it honestly. If you are in Austin and want to come by and see them let me know. It might help to actually see them in person. You should have some time to decide even while the pool is being built.
I have few thoughts on the glass:
1. I have only been able to really see them in the sun once right after the pool was done. After that it has been gloomy or dark when I get home. The few times I saw them in the sun they looked amazing. Plus that was when the pool was murky. I really think I had some algae or something in my pool at first because my pool was sitting so long with water in the pipes for months so when they started it up it really got green. I was pouring bleach in like a mad man for the first week because he didn't want me going above .5. The pool calculator was saying to add 20oz or something but I would add that and wouldn't get anywhere. Finally I added an entire jug of 1 gallon 10% and it finally started clearing up in the deep end. I now can see the pool calculator work when it comes to the bleach. My CC was over 1PPM too for awhile but now I have that under control. Darn Algae really hindered my ability to see the glass in the sunlight. I am hoping in spring I'll really be able to appreciate it more.
2. When not in direct sunlight the beads look more like smooth rocks. I can't really see the light blue or the clear beads. With the blue blend you get basically 4 colors of beads. Dark blue, light blue, clear, and ones that have a pearl like color. I think the light beads and the clear don't really show up at all when the sky is gloomy. Now with that said the dark blue beads really add some kind of sophistication to the finish. It is hard to quantify it but it looks higher end than the other pebble sheen finishes I have seen.
3. Finally it looks nice with the pool lights on. They kind of glimmer a bit with the lights.
With all that said would I buy them again! Probably absolutely now that I have seen them. If I were to need to refinish my pool it would be really hard not to get them. If you asked me before I started this whole thing if I would pay $1k for glass in my pool I would say no. But now that I have had them I would probably pay to do it again. I would have probably have skipped the $1300 dollar upgrade on my controller to add the 4 extra accessory relays to get the glass instead. My pool is pretty simple and I think what makes it beautiful is the finishes are different than what I have seen. I think the stone on the bond beam, the pavers, and the glass in the pool really help my pool not look basic.
Your pool design has more pizzazz I think than mine so you could probably get away without the glass. The pebble sheen is really nice anyway. So it is only a decision you can make

Also on your ledge I would honestly ditch it. To me it kind of looks out of place because it is tucked in the corner. I like when the coping goes around most of the ledge. Plus your pool is smaller so I would probably just have the bench go straight across so more people can sit in the pool or have steps on the other side to make the pool look more symmetrical. That is just my opinion and I am an engineer so I like symmetry haha.
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Oh and another thing get yourself the large rectangular sample for the blue blend. It comes in 4 colors I think... Blue Blend w/ Blue Granite, Aqua Blue w/ Blue Granite and the other two are white I think. Anyway those samples look amazing whenever I see them in the pool store. I stare at them every time I go in (I just stared at them again yesterday). They must think I have issues or something. They really look fancy and sparkly and they get my attention. They have special lights on them like a jewelry store but I am secretly hoping when the sun comes out and my water is clear I'll get a little of the same effect. I think they pop out to me more than the pure glass finishes. Because it is rock and you aren't expecting the reflection and then it just gets you! Like a surprise. The all glass finishes (bead crete) have so much glass it almost takes away from the effect a bit. I really do think the pebble sheen with the glass is probably my favorite finish but then again I am talking like a parent thinking their kid is the most beautiful child in the world. (And of course my 1st daughter actually won a world's cutest baby contest haha so I know the feeling). Anyway get the sample haha.