Yes, you can tell her to meet you at the copper coronet. And she makes it. However, if you dump any other NPC to make room for her in your party, that NPC will sit in spellhold and you wont be able to get them back. Which is annoying.
As for playing without her - well, Ive soloed the game, which is certainly done without Imoen. She dosen't get referred to again, as far as I can remember. Certainly, theres no reason to bring her with you if you don't like her.
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