I don't think anyone could tell you if you'll like it or not
There's too many variables in there!
There's so much good about it - the creepiness of the Others, the radio transmission, the focus on pregnant women, the coincidences and the flashbacks, Desmond and Penny's love story, Charlie and "not Penny's boat" (sobs heavily at that bit), Sawyer and Kate, Harley and the lottery numbers - it's intriguing, funny, creepy, devastating and very cool. I would not write the entire thing off for the ending, at all, because there is so much to enjoy along the way.
But then at the same time, it was just so infuriating. It was such a brilliant, brilliant premise, and executed so well in so many ways. But it did lose its way a lot, and I got completely fucked off with it mid-series 3 and refused to watch it. The whole thing of the characters having the opportunity to ask the bloody questions they should...and they never, ever did!! Gargh! I think it also suffered through the writer's strike that year, and it showed. It was a victim of its own success in many ways - it reeled you in so completely, and left you gagging for explanations, and just didn't have much more than an old man behind a curtain using smoke and mirrors...
Then I re-watched up to where I'd left off, watched it on a level of - it being enjoyable but knowing the writers' penchant for not really ever explaining anything, and saw it through to the end and just kind of accepted they'd built it up to such an amazing degree, maybe they could just never end it well.
So my advice when it comes to Lost - enjoy it for its creepy, very funny, very intriguing plots and don't base your entire enjoyment of it on the ending :)