Move it or sell it if you dislike it. It adds considerable personality to the room, but if it is not working for you, then it should go elsewhere.

Before you sell it, check with siblings and cousins and see if anyone wants an heirloom.

I love it and would grab it up if it were offered.

It looks beautiful. It also seems to go well in your dining room, but if you don't like it there is there another room it can go in like a living room, den, or entry way?

A table runner on top in colors taken from your drapes can lighten it up a lot and make it a little less formal and fusty. Don't paint it. :)

Would make a nice bar area. Add a green marble top to it, a tray for glasses and an ice bucket. Move it to the socializing area..

It is beautiful. I agree with Function, I would replace the table with one that works with the sideboard.

I just got rid of the furniture from my grandmother and mother that I had been saddled with. Yes they were lovely old pieces but they weren't my style and I was hanging on to them out of false sentimentality and guilt.

You can try selling it on craigslist - you can donate - you can see if a friend can use it who might actually find it useful or aesthetic.

Normally I am of the school of trying to make it work rather than just spend money because something is no longer fashionable - but this isn't a massive kitchen renovation - it's getting rid of a piece of furniture that isn't your style and doesn't go with the rest of the furniture in the room. The value of so-called "brown furniture" is minimal as very few people actually like the stuff now.

Release it - take a few pictures of it - any memories you associate with it are still there in your brain and of course ask if any family members want it - none of mine did :-) And I am still trying to unload the 16 place set of my grandmother's Limoges china which I have never used in the 16 years I inherited it :-)

If you decide to keep It, you can definitely make it fit in by styling the top and the artwork above to complement the existing style in the dining room.

Given a choice between that beautiful eastlake Buffet of your great grandfather's and that pottery Barn-ish table and chairs....take the buffet! It has stood the test of time for more than 100 years....and in 15 years that table and chairs will be junk
It appears that your house is very traditional, with the chair rail and the draperies...ditch that table and see bow lovely that buffet looks.

Eastlake is a very distinctive heavy style related to the late Victorian and I think it does not compliment the lighter, more airy Colonial style I see in your photos. Victorian dining rooms had more elaborate chair railings, heavy wall colors or wall papers and drapes. I would send it to a consignment store or even donate it if you are not emotionally attached. If you are attached to it, I like the idea of using it elsewhere in the house as a distinct accent piece. I think it could be improved with a runner and some colorful display pieces on top. I also thought the art work hanging above it looked heavy for the space. If you plan to keep it in the room, I would be tempted to do something outrageous hanging on the wall. I also think the table and chairs suit the room better than the sideboard, as they are airy and light.

Do invite your relatives to speak up if they would love to have it! Start with your children, siblings, aunts/uncles, cousins. It may be that they will be thrilled and even have something that you would prefer to have to swap for it?

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it's gorgeous. give it to me! definitely don't give it to anyone who would chalk paint it.