Harley Benton HB-20R

pros:
-very low price: it costs like going once to local restaurant with your girlfriend
-pretty good quality
-very loud: I usually play at 30% loudness. I guess you can take it to local pub concert, etc.
-The eq is nice

cons:
-Mine came a little bit scratched
-The spring reverb is very strange. If you play at a big volume, and turn the reverb bigger than 60% percent, it starts to make a very loud noise which go louder and louder, until you turn off the effect at all. First time it happened I thought I destroyed the combo. You don't imagine how loud that was
-Strange sound quality when playing in headphones. That is because the combo doesn't have a cabinet simulator. So playing in headphones doesn't make any sense.
-Also the aux cable quality is very very bad. The sound is very bad, it doesn't have any bass and middle freqs. Also when nothing is playing it makes a very loud noise. So connecting an aux cable for practicing or just listening to music also doesn't make any sense.

In conclusion I can say that if you are a beginner totally buy it! But if you want something serious, buy a combo like Fender, that has digital effects. They are called Modelling combos. Buy something like Fender Mustang LT50.
But from my opinion, the best option is buying a sound card. I bought Behringer Umc204HD. But if you want a sound card, you will have to know at least the basics of a DAW (reaper, cubase, reaper), or you can download different soft(Bias fx2, Guitar Rig 5). Also you need to have a good pc, and some speakers or studio monitors

Let's start with the most important thing: For the money, it's great. It is a powerful amplifier that can be used at living-room volumes, it has a headphone jack and even built-in spring reverb, a looked-after feature. It's a good option for a first amplifier as I've found it to take pedals in front quite nicely (mind it doesn't have an effects loop so any pedals will need to be put in front) and its own overdrive is all right for a beginner to get you in the ballpark of rock.
However, there are a few less likeable features about it.
First off, The on-board overdrive is not by a long shot as good as I would like it to be, it lacks dynamics, sounds very harsh and artificial and when the knob goes above halfway it doesn't get dirtier, instead it only ads noise without distorting the guitar. My recommendation is to get an overdrive pedal to go along with it, a cheap one will undoubtedly be better than what's on board.
Secondly, the MP3 input lacks a serious function: Remaining quiet. Whenever it doesn't have a signal from another device, it hums like crazy. Also, it doesn't like to be quiet: It wants to be loud.
And thirdly, although this is just me nit-picking, the reverb gets noisy rather quickly. The amplifier doesn't have the best shock-resistance ever so me walking around creates a little noise from the springs wobbling. Do keep in mind that I have quite a heavy step and this might not be an issue for you, but it is a downside in my opinion.
To conclude: If you want to sit in a chair and plug pedals into it, go for it. If you want a cheap solid-state amplifier that will last you, go for it. If you expect it to get crunchy metal tones, it won't, though it does do cleans quite nicely.