Is startone a good guitar?

It is really a good value for the price and I highly recommend it for beginners. One of the cons I noticed though is that when you bend the strings too often when playing, it tends to go a bit out of tune but no problem apart from that. I am very happy with the purchase.

What size is 4/4 guitar?

A 4/4 size or a 40 inch guitar is the biggest guitar size on the market. They are often just called standard guitar or full size guitar. For kids from 12 years, this guitar size is in most cases the right choice. This guitar size is not only a guitar only for kids but also for adults.