I'll try to be as unbiased as possible when it comes to this because in the gaming industry, NnB is definitely the red haired stepchild of the Banjo-Kazooie series.
(IF YOU HAVENT PLAYED ANYTHING BEFORE NNB): If you have never played the previous 4 (four) installments of the B-K series, you will very much like this game, it's in its spirit, a mix of Lego, Need for Speed and a sandbox game that really makes itself unique, and is quite an interesting take on the three subgenres. Everything about the game is fantastic, and doesn't skip a beat, from the IP, to the individual ideas that this game provides. I would recommend this to anyone who is interested in sandbox/voxel, if they did or did not play Banjo-Kazooie, regardless.
(IF YOU DID PLAY PREVIOUS INSTALLMENTS): This is where the drama sets in. Being the first (and quite possibly last) Rare game that is now officially on Microsoft, it does not have the same spirit or identity that is shared with its predecessors that came on the N64/GBA/DS. In a watered down sense, it's a Lego game disguised with Banjo-Kazooie properties. People will curse this game until Microsoft's death and it is an unfortunate thing that people who both love the series from before, and new people getting into the series today will have to live with. You have to understand that not all games will follow in its history, be it a game that people have been wanting to be released for a decade plus.
Nuts and Bolts is just that. It's a very lucrative take on what was already well made and well done, and thrown into the testing stage in a new twist. As much as I had fun with the OG and Tooie, Nuts and Bolts is fun in a different way. Nintendo fanboys will spit poison to this game because of "not my Nintendo" nostalgia and it is kind of disheartening. Throwing unreasonable hate for a game that holds itself true to the original formula of the series because of "muh nostalgia" is pathetic and you question why people make fun of you when you complain about little things Nintendo does.
In a weird nutshell, yes this game is good. Yes this game is good, 15 years later. Yes, this game is good for a series that is 25 years old. If you hate it, because it doesn't play like an N64 game that is dated and shows its flaws compared to a refined piece of pie that NnB is, grow up and accept that Rare is no longer the Rare you grew up with. Nuts and Bolts is really a litmus test to see who has failure with rejecting nostalgia and those who prefers a change. Period. I would warrant this game enough for Rare and Microsoft to make a Switch port because I absolutely know this game will play very well on a gamepad like a Switch. But knowing how finicky the love/hate relationship Nintendo and Microsoft and fanboys are, I doubt the existence of this game outside the Xbox/Xbone is limited. But knowing how B-K came back to Nintendo Online, it's possible.