So I previously had an iPhone XS Max. I've had it for about 4 years and really just wanted something new. I saw oodles of marketing for this Z Fold 4 and decided to check it out. I used to have a Note 3 and Note 8 so I was curious to see what advancements Android had made since I last used it. Coming from iOS, I was looking for comparable features and functionality.The phone itself is really eye catching. It looks like your typical slim, large screen phone but once you fold out the phone, it really grabs peoples attention. My biggest concern was with the crease. Being a folding phone, it's inevitable however I was curious as to how noticeable it is. And, it is. Especially if you're looking at the screen in bright light, the contour of the crease is quite noticeable. If you're looking at your phone in the dark or low light, it's hardly noticeable at all. I've had mine for about a week now and, while the crease is easily noticeable, I've sorta conditioned myself to not look at it. If you were expecting the crease to be minimal, it's not but it's something you can live with.Performance wise, wow, really an impressive phone. I've not experienced any stuttering or lag when quickly scrolling through websites or anything like that. All the apps just snap open instantly and really pop on the inside screen. I checked out Youtube videos and took some pics and everything really worked out nicely with no hiccups. The camera is a nice step up from my XS Max so no complaints here. the 8k video seems a bit choppy so not sure if it's some setting I missed or what.Battery life is acceptable, not great. Now, for the past week I've been on this phone pretty much the whole time so that's killing a lot of battery. I also have the screen on full brightness since my eye sight isn't what it used to be. The bigger inner screen really helps out in that respect so that's a big bonus for me. However, after pulling the phone off the charger at 9AM, by the time I went to bed around midnight, my battery was in the teens. I think it was around 14-15 percent or so. While not typical usage for me, I think under my "normal" usage, I think I should be able to be around the 25-30% mark by bedtime. Considering the size of the phone, 2 screens and full brightness, I think that's pretty good performance for the battery. Personally I would've like a larger battery in here but perhaps that'll come in future versions. Thankfully, the apps from Android/iOS are pretty much spot on in terms for 1:1 match so that was really good. I have had some issues transferring data between both but that's sorta to be expected.Size wise, it takes me a little getting used to. It's much skinnier/chunkier than the iPhone and heavier as well. When i'm out and about and have my iPhone in my pockets, I can feel it there but it's not too noticeable. With the Z Fold 4, it's quite noticeable. Again, this is expected so I'm not really all that surprised by this. One real complaint I had was that the phone is really slick. It's glass and metal and some plastic so it does feel like a premium product. Feels very well made and solid. However the front screen and the back of the phone are really slick/slippery more so than any other phone I've had. On one hand it feels really good but, on the other, I was super worried about dropping the phone or having it slide off the couch or something. I have a case on it so that helps but definitely something to note.Aside from software/ecosystem differences, not really that much to gripe about. The Apple Wallet is far superior than the Google Wallet so that's a huge bummer for me. I can't use my Apple card on with this phone and my DC Metro transit card won't work either since this phone isn't compatible. I'm slowly learning all these little differences but, for the most part, it's been a pretty easy switch.So is it worth the price tag? I like it. This phone isn't for everyone, needless to say, so this is geared more towards the "power users" or tech nerds like myself. It's an eye catching phone packed with features and hardware that give you lots of stuff to play with. I'm hoping this holds up for quite some time since it costs a pretty penny. But I think I should be quite content with this phone for quite some time.