No, an absolute disaster tbh. And I'm one of the life lovers here on the forum. I've had times when I've wanted to live forever, but also times when I just wanted to end it all. If I had the choose, I'd take the latter, because we never have a guarantee of being happy. Sometimes have heard people on here saying how existence is suffering, and maybe it was for them, but I never felt that way about my life. Had really great times, followed by really terrible times, and for a long time meaningless times, because I couldn't switch to a good state of mind anymore. And yet, I see my life in perspective and am at peace with all of it. But if life were to drag on for all eternity in this state where one can't switch to good anymore, then yes, that to me would be indeed eternal suffering for no purpose at all.
SlowMo, I get what you are saying, have even fantasised about sleeping for thousands of years until we can cure our problems, but tbh with you, I've waited 26 years, can't imagine waiting a lifetime, let alone infinity or something. Am not completely convinced it all ends after death anyhow, or we wouldn't be here now.
It's all good when our time comes.