It's not too hard to use the Trace Elliot 715 X, but it has a ton of features and controls to be aware of. First of it has a seven band graphic EQ which sounds great, in addition to built in compression and gain control. It's definitely a self sufficient amplifier as you can get most of the sounds you're going to need right there. I don't think a manual is necessary, but it can't hurt to have it around if you've just bought this amp and want to know everything about it.
The Trace Elliot 715 X is up there with some of the best bass amplifiers that I've ever recorded with. I honestly wasn't expecting it as I didn't know much about Trace Elliot and it doesn't exactly look like it's going to be an incredible amp. It's a lot smaller than most amps, but still packs an insane amount of power and can certainly get loud enough for recording or playing shows. The built in EQ and compression sounds fantastic and is a great bonus in addition to the great amp.
The Trace Elliot 715 X is definitely a professional's amplifier and seems to be popular amongst pro bassists. It's expensive, but not terrible when you think about what top end amps will run you. That said, for this price you could get an Ampeg with a lot more speakers and louder sound, but if you aren't playing loud rock music, this might be a better choice. If you're a bass player and you don't yet know about this amp or Trace Elliot, I'd highly recommend getting hip to it.