I switched from a Wacom to an XP pen tablet, similar features, better price at the time. I find it not at all useful for lightroom, the mouse is easier to use with the sliders and auto masking. If I have hand work to do I jump into photoshop to do that. That said it could be useful in lightroom for selections where auto masking is turned off and one is relying on their drawing skills. But I use it a lot in photoshop when using brushes for selections or painting. I will say that with the auto features getting better and better in photoshop I don't really need to use the tablet as much to draw an accurate selection, the mouse does just fine and enlarging the screen gives OK control, but it feels more natural to use the pen rather than the mouse for any motions that feel like drawing. For that what is important in the tablet is the levels of pressure sensitivity, more being better up to a point. If selections is all you are doing than pressure sensitivity is all you really need, with the brush getting bigger or smaller or having more or less opacity with pressure. I sometimes add painting with digital brushes so I appreciate other features like tilt sensitivity when a brush supports it, but for what I do pressure sensitivity is the main thing. It takes a little getting used to, but if you stick with it for a week or so it becomes second nature to pick up the pen in combination with the mouse. I find it easy to hold both the pen and operate the mouse in the same hand, and even use the keyboard without putting the pen down.
