I hate to say it, but stay with the 6 plus. I got my 950 XL, and the ****** in me was in denial about how awful everything is right now for our platform. Its now long past the 15 day return period and I wish I had returned my 950 xl to get an iPhone 6s or 6s plus.
Honestly, its not the missing apps. I have basically every app I need. Its the fact that the apps are TERRIBLE quality in comparison. That and there are just so many little issues with the OS that make it a chore to use half the time.
Just a few examples from the past few days. My friend requested an uber fare share with me. I got the text message, clicked the link in the text message and it immediately showed me a message on their page saying "open app" or "download app". On iPhone or android, this page would have immediately redirected the user to the app itself to complete the transaction. No biggie, I clicked open app to complete the transaction. It took me to the uber app home screen. Didn't take me to the fare sharing screen to complete the transaction. I spent the entire uber ride trying to figure out if there was a way within the app to check sharing requests. Couldn't find anything. Ended up having to buy my friend a few drinks to cover the cost.
Another example: Today Myfitnesspal was down for maintenance for a little bit. Since the maintenance ended, I have not been able to use the windows phone app at all. Nothing works. The webpage works fine. On top of that, its still not updated to a universal app, and its missing functionality.
The new messaging app is a joke. It has the paper clip icon, signifying that you can send files. Nope its greyed out and doesn't work. Seriously Microsoft?
I don't think this is an app specific problem, but more of a platform specific one. Apps do not treat URLs properly. If I click a post in facebook, it opens the post in edge. If I click a youtube link in edge, it opens the youtube webpage rather than my youtube app. On android and iPhone, it automatically opens the app, or you can choose which app to use (on android).
Ive had so many Bluetooth problems as of late, my band 2 cant detect my phone half the time, so Cortana and text message replies never work. The new music controls cannot be used while playing music through a Bluetooth headset. Perhaps its a competing accessory problem, as my headset has volume and song changing controls. I need to test this on an iOS or android device to see. My car can rarely resume Bluetooth playback without having to open my phone, open groove music and push play from the phone.
I don't find myself missing too many apps, its just that half the time my apps don't function properly, or lack basic functions that they have on other platforms. In many cases, third party devs just cannot make their apps as fully featured as the official simply because of private APIs not being available.
Being a Microsoft fan really sucks right now. The only thing that keeps me coming back to windows phone is the fact that I prefer microsofts services over googles or apples. iCloud is a joke compared to skydrive, office crushes everything apple and google offer, Cortana crushes siri and google now. The band 2 is an amazing device, but it doesn't offer full functionality on the other platforms. Despite the ****ty battery life on the 950, its still leagues better than any iPhone ive ever owned.
/end rant
I'm just really bitter right now. I want developers to get their **** together on windows phone, but even 200 million windows 10 users isn't convincing anyone to make universal apps. The windows 10 PC marketplace is just as barren as the mobile market place, and in most cases when a PC app is released, theres no mobile counterpart available.