You will get your money's worth. This program is cheap but is very varied in sounds and synths. I would recommend importing third-party plugins though as the default ones tend to be low quality.
i use this when im in the can. its a pretty powerful noisemaker when you hook it to the mixer. the pc version supports midi and is not a bad synth. i use it to generate sounds to port into reniose or when i have an idea and am not at my thinkpad.
Caustic 3 is a great app. I use it to make music with my cousins on a regular basis and both of my younger DJ cousins and I (we made our own band called SubZero). SubZero uses caustic 3 to make all their songs, and all members love the daw.
Caustic is an unbelievable deal at "free" on PCs, and $10 on Android. I made my first whole songs on the app, and I can't imagine my musical life without it. It's got some cheap sounds, but also some good ones. Overall it's a great app, and capable of some very advanced techniques. I'd love it if someone like Chemical Brothers took up a challenge to make a song or an album with it, because I know they'd put lots of more expensive DAWs to shame.