Lightworks has a steeper learning curve, but a free version is available. 32-bit and 64-bit are both available for download, with 32-bit having more functionality. Check the documentations for more information.
Try each one and then find out which works better for you.
PowerDirector has an app for Android and can be purchased part of a bundled deal. (Windows + Android)
You can create professional looking videos without spending $100s, if you know how to "edit videos".
If you can, then you can use professional video editing software such as Sony Vegas Pro and Lightworks, or Adobe Premiere Pro. None are free for the full versions, but are top of their class for "Professional Video Editing". If you have access to a Mac computer, try iMovie or the higher end version Final Cut Pro.
To resolve this, try multiple editors (free trial) and find which one best suites you.
I mostly do video scaling,multicam,color and temperature enchancements,and audio mixing / editing. I obtained free key from CyberLink,installed it and i'm happy. 1440p is max quality,for 4K need money.
Its really a personal preference, because there are programs that can be used by novice and experts, and other that can be used only by experts. I saw people that are using Shotcut like its Premiere Pro + After Effects. Good video editing program is that one that allows you to do one thing in more than 2 ways
I think that Sony Vegas Pro, Cyberlink PowerDirector or CorelVideo Studio Pro are enough for regular needs + some really cool stuff like slow motion effects, multicam, spectrum tools and others. Adobe Premiere Pro, After Effects and even Lightworks are for the pros. Batman and Mission Impossible are edited in Lightworks