What are the general "pros and cons" of the regular iPad models?

The general 'pros and cons' of the regular iPad models:

• Design that is thin, attractive, sleek, and incredibly portable.
• A bright, high-resolution display with a wide viewing angle is available.
• User-friendly 'multi-touch' interface.
• In general, and especially while using 3G, the battery life is impressive.
• Large capacity storage (up to 64 GB).
• 3G and GPS (in some versions), as well as 802.11n Wi-Fi and Bluetooth 2.1+EDR, are all built-in (all models).
• Pre-installed programmes of high quality, including a web browser, e-mail client, and integrated Google Maps, as well as support for thousands of other iPad apps (as well as the vast majority of applications designed for the iPhone and iPod touch).
• cons-The glossy display causes glare in direct light and is more difficult on the eyes than e-reader displays.
• Although excellent, the battery life falls short of that of e-readers, and the battery is not designed to be easily replaced.
• It is impossible to increase storage capacity.
• There is no SD card slot for photo transfer.
• There is no video conferencing, still photography, or video capture camera.
• Flash is not supported.

Read More: Which app or function is used the most on the iPad?