Dragonspear is probably Beamdog's best writing. I know that isn't saying much since their EE content for 1 and 2 were both kinda lackluster. Not insulting or bad, just forgettable. But Dragonspear is pretty nice, and helps fill in the gaps between the first and second games instead of just a quick narrator scene. It also very fantastically helps fix any narrative inconsistencies too, so that it explains why Minsc and Jaheira are with you in Waukeen's Promenade in Shadows of Amn, as well as why Imoen is now a multiclass, regardless of your decisions in the first game (assuming you didn't let Xzar kill Jaheira and that you didn't help Edwin kill Dynaheir).
My biggest gripe is Glint. I don't like him as a character. As a gay man myself, he feels like extremely poor representation.

The dungeons in the first half of Dragonspear are annoying slogs through waves of copy-pasted enemies that are easily dispatched with charges of the numerous wands of fire you never used in Tales of Sword Coast. But after the halfway point, especially starting with the Wyvern cave, Dragonspear really picks up and becomes a joy to play through.
It's also extremely linear, even moreso than Throne of Bhaal, which can be annoying and makes it easy to feel like you've missed content by progressing forwards when you didn't mean to.
All in all, if you like baldur's gate for the combat and the tactics, save your money and don't bother with Dragonspear. But if you're here for the narrative and want something that helps bridge the awkward gap in the two games, Dragonspear is a good addition.

Preface: this review is targeted at people who played the original and are interested if Beamdog's version is worth it.

And yeah, I think so. The game is significantly more stable now on modern computers widescreens. Also, if you don't like the new stylistic changes to the look of the game, they can all be disabled individually. Lots of new quality of life improvements such as icons depicting what your characters are doing as well as porting all the cool goodies from BG2 over to BG1, making it MUCH easier to transfer your character between the two games.
Some of the new characters are admittedly kinda lame, but then again, even Rasaad isn't as bad as Garrick, so that's nothing new.
New content is also nice, and is about as much extra content as Tales of Sword Coast added.
BG2EE on the other hand feels more like an afterthought in comparison.

I really wanna like this game, but I just can't. Alpha Centauri did the sci-fi setting better, and Civ 5 does the hex grid civ formula better, so BE kinda sits in this odd space where it's not objectively bad, but just struggles to justify its existence.
The game also doesn't really present you with interesting dilemmas like civ 5 or AC does, and instead, almost all the decisions the game throws at you always have an objectively best choice for every playstyle, so it ends up feeling samey and bland.

NGL this one doesn't scare me as much as the first game did. The map in this game just feels a bit more cramped. The really deep caves still do feel rather claustrophobic too and getting your seatruck stuck on rocks and vines is the biggest frustration I had. It's still really fun though with a very pretty setting and lots of new stuff to explore, tho I was often a bit disappointed with how many plants and minerals I couldn't scan and how few plants I could take samples of.
Despite that, I still can't wait to see what the devs are able to do with a new engine for the next game.