I've had some experience with the Roland TD-25KV, and overall, it's a solid choice. The mesh heads offer a very responsive feel, closely mimicking the dynamics of acoustic drums, which is great for both practice and live performances. They're also durable, holding up well even with regular, intense use.
In terms of sound quality, the TD-25 module is quite impressive. It offers a range of sounds that are customizable to a good extent, allowing you to fine-tune each drum and cymbal to your liking. The editing features aren't as deep as Roland's higher-end models, but they should suffice for most needs, especially if you're aiming for quick and easy adjustments.
For live gigs, its portability and versatility are definite pluses. It won't replace the acoustic experience entirely, but it's reliable and delivers consistent sound across different venues. Just make sure to invest in a good amplification setup to ensure the sound carries well in a live setting.
Roland's build quality tends to be robust, so you can expect it to last a good while with proper care. It's a great kit for both casual practice and more professional applications. If you're looking for a balance between quality and cost, the TD-25KV is a compelling option.