I have a bad feeling about this

Rating: 5/10 (15 December 2017)

I am a fan of Star Wars. I am a fan of Cinema. I appreciate good storytelling, plot development and strong characterisation. I saw The Last Jedi on its release day (as I have with all Star Wars films since Return of the Jedi). With 24 hours to reflect on the experience and add a bit of perspective, I have to say overall I am disappointed. My review contains spoilers.
Parts of the film are well done - the opening space battle is great (apart from the out-of-place-in-this-universe 'on hold' conversation). Luke setting foot on the Falcon and glimpses of his X Wing underwater help to connect his character between the trilogies. But these are sidelined by some bizarre moments - Luke milking a space cow!?! Leia flying in outer-space... OK, I can get past that but as the film moved on , too much humour and poor character choices let down what could have been a great film.
With The Force Awakens, new characters are introduced with enough story to be built on and explained in this film, but this is wasted - who are Rey's parents? doesn't matter now, no-one significant. Who is Snoke?, is he Sith?, connection to the Empire/Palpatine? There's no exposition and he's taken out too easily for someone seemingly so powerful. The subsequent fight with the Red Guards is good and the scene plays well. But I was a little confused as to why they all had different weapons - force chain, force swords, force bat'leth or whatever. In Ep3 the Magna Guards shared the same weapons, likewise in Ep6 with the Emperors Guards. I understand the need to move stories on, but sometimes consistencies can also work.
With the Original Trilogy and the Prequels there was an overarching 3 act story, and like them or not, the Prequels do work in terms of story development and character. In EP3, the theatre scene with Palpatine/Anakin is one of the best in the series and the sequence with Anakin's transition into Vader after Mace Windu is dispatched is also very good. With the sequel trilogy, I feel Disney should have asked a writer to outline an overall 3 act story and hire directors to fill in the gaps with their own creativity and ideas, but staying true to an original and consistent vision. But it looks like this wasn't to be and I am left underwhelmed by a disjointed cinematic experience.
Finally, the most disappointing element was the handling of Luke's character. (Mark Hamill's performance was excellent by the way). I'm struggling to rationalise how the kid from a New Hope who berates Han Solo before the final battle for turning his back on the Rebellion, or the Jedi Knight who goes to destroy the Emperor and save Vader in an act of selflessness in Return of the Jedi could become the character in this film. I don't get it, and I don't want to get it.
I think 5/10 is a fair score. The 2 and 3 ratings are a bit harsh, but I can understand some of the sentiment. (For reference I'd score EP3 7/10 and EP5 10/10)
I've seen all the other Star Wars films multiple times, but will only watch this once. For me, Luke's character arc now ends at Episode 6, the real Last Jedi