I remember renting the original on the Dreamcast. I was impressed by a lot of the attention to details (of course, at the time it was pretty good). But as far as gameplay goes, story, voice acting and just the general 'feel' of it (setting / time period, overall main subject and themes) it just wasn't good for me; wasn't for my tastes (especially not during those years, when "RPGs" for me was enough of a term to turn me off from miles away).
I essentially just rented it to check it out in motion because the pictures I saw in game magazine previews looked good, and because Shenmue was - from what I can recall - one of the few Dreamcast games that pushed the console to its limits enough to be compared to PS2 games at the time when we had those debates, fights and comparisons between both consoles and how games looked like on (and against) each others (it was nothing compared to SNES Vs Genesis, obviously, but DC Vs PS2 definitely was a thing for a couple of months especially just prior to the PS2's release). I actually remember Shenmue more because of that aspect ("console war" of that time) then I do because of its gameplay.
However, despite the fact that it just wasn't my cup of tea, I couldn't deny that it was impressive on a technical level. It's sort of funny to think about this now but at the time I found that it was mind blowing to have a 'weather system', and a day and night system with real time based on your console's clock (from what I can recall anyway; I.E. if it was night time for you, it'd be night time in the game, or something like that). I don't think that anyone at the time (except the ignorant hard core DC haters) could deny that it was indeed a very ambitious game with a lot of details thrown left and right that really pushed the console to its limits.