I picked it, so it's a safe bet to say I like it :)
I hated my birth name and it had a lot of horrible memories and associations for me, and since I was little I'd wanted to legally change it. I'd been going by Alice for years online and felt it fit me a lot more better (I thought of myself as Alice, I got my mail addressed to Alice, etc.) so I finally took the plunge to tell people around me and change. I rarely encounter my birth name anymore and I'm a lot happier about that. It made sense on some level that I should choose my own name, one that would really represent both who I was and the person I tried to be, that caught aspects of my personality I didn't really feel were obvious, and spend time looking for the right name, so I floated between names before that.
I like having a name that is not that common for my generation but is still common enough to be easily intelligible and not ambiguous. My old name was a nightmare, I answered to about ten different things because nobody could pronounce or spell it, and my own father couldn't spell it. Worse, all the possible diminutive variants were awkward or didn't suit me, so nobody used them. I don't want children, but I would never give my child a complicated first name without a simple diminutive or middle name to fall back on.
For the record I changed all three names of mine for various reasons, I was pretty pleased to get rid of my family name too and literally nobody in my family was surprised I wanted to. Except maybe the parts that already disowned me (my middle name was partially to honour them as well and I hated it because it was a Super Elderly Person name so I saw no reason to keep it)