Cheap, powerful and detailed; a great intro to tubes.
First of all, I haven't had much experience with the main, well-established tube options, but from what I have heard I would definitely recommend the TA-05 - especially when it's so cheap. The sound is noticeably clearer than other cheap amps (e.g. Objective O2; Liquid Spark; maybe even the Atom) and it provides TONS of power to just about everything I could throw at it.
This next pro might sound a bit strange but I feel it's worth mentioning anyway: the internal PSU that lets you just plug in a regular IEC cable without any adapters or transformers is a great quality of life feature and I would love for other amps to include this. Lastly, the inclusion of of an AUX switch and jack for two separate sources is just nice; really makes setting up audio for a computer or console or whatever else you want to plug in so much easier.
So in the end, would I recommend this over similarly priced option? Definitely, it's a hybrid amp with a clear and detailed sound signature, sexy looks and all the power you could ever need. If this is your budget, then this is your amp.