Earlier this year, I went on a Bluray shopping spree, and these are the packages I bought:
Enterprise Box set
https://www.amazon.com/gp/product/B01N9BJHPI/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1
TOS Box Set
https://www.amazon.com/gp/product/B01CJW334Q/ref=oh_aui_detailpage_o03_s01?ie=UTF8&psc=1
Movies 1-10
https://www.amazon.com/gp/product/B00CM0XA1C/ref=oh_aui_detailpage_o03_s01?ie=UTF8&psc=1
TNG Box Set
https://www.amazon.com/gp/product/B01BP06ENA/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1
Movies 11-13
https://www.amazon.com/gp/product/B01KW9M9IO/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
TWOK Directors Cut
https://www.amazon.com/Star-Trek-II...89&sr=1-1&keywords=star+trek+II+directors+cut
Now I already had everything on DVD, but after seeing TNG on BR, I had to just get all that I could on BR. Particularly in the case of the Enterprise, TNG, and TOS box sets, some people complain about the packaging. Yeah, you do have to be careful of how you open them and where, lest a disk jump out and roll away from you. But other than that, not a big deal, even if the packaging is simplistic. It definitely isn't like the DVD packaging, for sure, but you know what? I am glad. It literally cut my used shelf space in half. So I am a fan of the packaging I have because I don't care about what the disks come in, just the disks themselves.
As to the disks themselves, they are the same as the previous BR release. You don't get any new content. In fact, some of the extras/interviews on the TNG BRs are the exact same as what was on the DVDs. But as for content, I watch the extras maybe once, if that. I just care about the movies or episodes.
The BR set I was impressed most with was TNG. Not only is it cheaper than buying each individual season, I was blown away at the quality of the video itself. For years I resisted going to BR, because I figured I had it of DVD, and I knew the aspect ratio would still be 4:3. I've bought BR versions of stuff I had on DVD before only to be disappointed (Looking at you T2, Predator, Aliens, and Excalibur!) . But once I saw TNG on BR for myself, I had to have it.
I am also a fan of TOS on BR. Can't decide between getting TOS original or TOS remastered? No problem, the BR has both, where you can select the version you want to see. Just awesome. Why didn't George Lucas do that years ago with the OT? This isn't the BR set's fault, but I kind of wish I got the 50th anniversary set, which included the TOS films and TAS, instead, but I didn't know about that set when I bought the BRs listed above.
The only real complaint I have is for the movie Set 1-10. Why didn't they include the directors cut of TMP and TWOK on the disk, like they did with the TOS episodes? Not that I mind all that much, but it could, and should, have been done.
I wish DS9 and Voyager would see a BR release. I read that the DVD re-releases literally just repackage the DVDs from the early 2000s. They even use the same menus. But the re-releases are way cheaper than what I paid for my sets. I've read all the reasons why they have not been transferred to BR, and I am convinced it won't happen, but I would be happy if they just took the existing DVD transfers, up scaled them digitally as best they could, and transferred them to BR, I would be happy. BR disks are tougher than DVD disks, and the sets would have less disks. Plus I don't think the DVDs look THAT bad. Totally watchable to me.