I have the original Rocksmith, for PS3, and I like it. There was another thread a couple weeks ago asking about the new version, Rocksmith 2014, so I started playing Rocksmith again. I do not have RS2014, but will get it for Christmas. RS1 has a lot of frustrations, e.g. long load screens, and a couple mini-games that seem to give everyone trouble, but playing songs works well.
If you are learning electric guitar, you should get this game. It’s a lot more fun playing with the songs in the game than just practicing on your own. You’ll almost certainly play your guitar more, and that’s probably the most important part of learning guitar. It won’t teach you to read music or tablature, but there’s nothing to stop you from doing that yourself.
For a new song, RS1 starts with a few notes, and adds more of them as you do better. It probably pushes you too hard, which is one of the frustrations of the game. You never fail a song, so you can just ignore the additional notes, or play a single note when a hard chord shows up. The downside is you never feel like you nailed a song. RS2014 is supposed to be better about this.
In addition to just playing songs, there are minigames to work on individual techniques. For example, playing scales across the different strings in a single hand position. Another for working on moving up and down the neck on (mostly) a single string. There’s one for harmonics, but that’s one that has some problems.
If you want to just jam, you can use the game as an amplifier. During the course of the game, you unlock guitars and effects pedals, and you can use these when jamming to change how your guitar sounds. Real pedals are, well, pedals, and you can turn them on and off with your foot in the middle of play, and can chain them. I don’t think you can chain them, and the only way to switch while playing is probably to have someone else do the switching for you.
Latency:
I don’t have a problem with latency. If you use HDMI to connect to your TV, and use the TV audio, there is a large delay associated with decoding the HDMI audio, and the game is likely unplayable. You cannot use HDMI audio with this game. I suspect that’s the issue some of the posters above had. I have the PS3 analog audio directly connected to audio-in on my DVD/stereo set, which avoids that. I play RockBand a lot as well, and using the audio cables, our audio lag setting is about 25 ms. I tried using HDMI audio once, and the setting was, IIRC, about 180 ms. RockBand is still playable, because it just sends the game audio early to compensate. In RockSmith, you’re actually hearing your guitar, and that delay can’t be removed. Here’s a post/thread on another board discussing latency and lag that looks pretty good.
On preview: I probably agree with getting RS2014 instead of RS1, but you can buy most of the RS1 songs as DLC for RS2014 for $10. I think it searches for the RS1 game data, so you probably need to pick up a used version. They’re probably pretty cheap now. But that can wait until you’re bored with what you have and are ready for more songs.
As I said, I have RS1 on the PS3. Things are probably similar for the Xbox, but no idea about PC or Steam versions.