[AT&T Samsung Galaxy Note II] quarlow:
I had a One X. I don't miss it at all for a few reasons. First, it replaced my wife's iPhone 4 (sold that for $200, got AT&T to price match Note for $200, so it was like an exchange), and secondly I was never really happy with it. Either I over excited myself for it, or I am really a Samsung fan boy unconsciously. I had a GS II, got doa replacements, and AT&T wouldn't let me early upgrade until October, but they let me get a One X free. The first thing that happened was a deep scratch within 48 hours with no explination, then a series of dead pixels. I relied on my microSD card more than I thought. The power button bugged me being on top. Then I went to load a custom ROM... Boy was I missing my GS II those 4 hours learning ADB. The CM/AOKP were poor battery life and buggy, and ViperXL still can't multi-task. It ended up being a laundry list of "minor" irks. Nothing big enough on its own.

I forgot about the early upgrade offer until I caught a YouTube video of the Note II's multi view. It was like my life went into slow motion. Within 30 minutes I confirmed I could early upgrade but, could not pre-order. I had to wait until the 9th, then they sent my phone on the slow boat from china and "overnight" turned into a week.

I can tell the screen is less bright when I put the two next to each other. When they are apart I can't discern a difference in the screens. Performance is night and day. I can multi-task again. I popped back in my MicroSD card. I can reach the power button, and unlock my phone easily one handed. The notification LED can be seen at all angles, and is RGB. The power port is on the bottom again, and the right side up. I honestly feel like this phone is more solid. The One X screen had give, it didn't feel like it was in all the way. I laughed at people that said they wanted the Note, way too big I told them. It only took a day or two to get used to, it doesn't feel big anymore. And when I grab the One X it feels so small. An iPhone feels like my toddlers phone, or the phone from Zoolander.

I really like the S-Pen, and use it almost every time I use the phone. The battery life is way better. I was barely getting through a day on a single charge on the One X ~ 3-4 hours screen time. I get 6+ on the Note most days. No need for a charger in the car, or at work anymore. Plus with the stock 2A charger it feels like it charges faster than the One X did.

I don't regret the jump at all, and if I had to go back I would sell the One X for a GS III. I just couldn't go back to Sense or buggy AOSP. I really like the TouchWiz on the GS III and Note II. Its not just the S-Pen stuff, its the stuff that I use constantly like Smart Stay, Smart Alert, etc. I also like using MHL, especially if I can download content to the MicroSD, and skip the computer all together. Every day I find I like the look and feel of the phone more. I have the titanium grey, and love the faux brushed metal. I know its plastic, some say it feels cheap, I say it feels durable. Like the S II that took a serious amount of abuse, naked. The One X looks like its been through a rock tumbler when you get it in direct sunlight.

I am going to go with the official Samsung black TPU case. Its $30 from Samsung, if you register your phone you get a 50% off coupon. I don't mind paying a little more for a case made by the OEM guaranteed to fit, and not interfere with the S-Pen being removed. I have seen people (here on XDA) modify the case and use the flip case too, jury is still out on that for me. The Note will be my first ever non-nude phone. I think the flip case might be too much for me.

</rant>

tl;dr - No regrets, couldn't be happier, performance and battery life are leaps and bounds ahead of the One X.

Sent from my Note II