That's it: this amp comes with everything you need. First, this amp delivers the proper deep sound of bass. My experience with practice amps smaller and cheaper than this one is that they just can't give the low frequencies and that vibration that feels all over your body. Second, as a modelling amp, it comes with a wide selection of different amp sounds. On top of that, it comes with many effects. And to keep everything easy, there are the presets, that is, combinations of amp+effect(s)+amp settings+effect(s) settings. Modelling amps without presets will not give you the tone you look for unless you know very well how to combine amps and effects and to choose the right settings. Here, you just select a preset and everything is set automatically so that you get the tone you wanted to. Put other way, you don't need to know much about effects and amp settings to get great tones. I imagine that very experienced players with large collections of amps and effects at home might feel a bit annoyed or jealous that it is now so easy to get the right tones. Indeed, anyone can get them as they are available in the amp out of the box and, on top of that, many more can be downloaded - at present there is a total of 86 presets. The conclusion is obvious: for less than 200€, you get the equivalent to thousands and thousands of euros in amps and effects, and this medium sized box saves the spaces of many metric cubes of amps and effects. The Rumble LT25 rival is the Rumble Studio 40; this one costs almost twice as much; the main reason for that is more power, which you don't need if you play at home; and with wi-fi, bluetooth, and more keys, it is easier to play around with different combinations of amps and effects because you can do it with your mobile phone, whereas in the case of the LT25, you need to plug a laptop to the amp. You can of course change settings, amps and effects directly on the amp, but the screen and extra keys in the Studio 40 makes that much easier. But if you just want to get the right tone and choose different presets without caring much about creating your own presets, than the LT25 is more than enough.