1.0 has worked great for me, in fact I just restored to it with ROM Manager for now. I haven't had any issues whatsoever with it and I've had the MR2 radio with it for a few days. I've had LGS 1.0 since the day after it released and I love it.
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Edit: Also I really like LGS, even 1.1 more than LTS simply because I love the look of Sense 3.0, especially the lock screen