1. Based on the reveal announcement the place is called Russel city but based on the first episode it seems to be heavily inspired by new york
2. So hes leon's descendant which would make sense since he is the bearer of the golden armor

It my first proper garo anime i watched and I loved it

That is if they want to make them connected. Remember Crimson Moon was it's on thing so it is possible that each of the anime series is their own thing.

Are the Garo anime series link with each other? I only seen the first live action show and the first episode of the anime.

So is this series before Taejima donned the armor or after Raiga?

Until there's an official announcement/explanation, none of the anime series are connected. They're their own separate series.

I dont believe the anime series are connected to the live action series. Similar to what I said to Guyver Spawn, unless there is an official announcement/explanation, they aren't connected. If it were, there would be continuity issues (if it were set before Saejima, I'm guessing you mean Taiga Saejima since you put 'Taejima"). Technology-wise, Vanishing Line couldn't be before Taiga's time as Garo.

I am in utter shock of this episode, who knew a first episode of a GARO Anime could be good and exciting. The last two were basically very difficult to get through and didn't get good for a few episodes. I love Sword, he is fun and badass. Also, the action scene was more like the Live-Action shows which were exciting to watch. Zaruba's motorcycle form was pretty cool. I can't wait for more.

I posted this a while back on the crimson moon thread (I think)
But i think the purpose of the garo anime is creating the franchise's full (or at least fuller) lore. I mean it makes a lot of sense when you look at seal of flames and crimson moon.

I agree with you there. I have no problem with expanding lore and if they wanted to make everything connected and canon, seal of flames and crimson moon would be easily placed in canon pre-Saejima (and either before SOF, between SOF and CM, or after CM, Gouki from Garo Ashura would be Garo). The main point I was saying was that Vanishing Line can't be set before Saejima as it would conflict canon non-Makai technology-wise. It would most likely be after Raiga or before/after Ryuga

Problem is didn't makai tales establish that ryuga and the saejima line were different universe's rather then different points in the same timeline?