My sister bought this grinder two years back and it is performing well, there was two or three blades with this which could be use to grind different materials or things. Its probably made up stainless steel as shopkeeper said and of-course plastic.
We make some juice also, crush onion or coconuts, mix dosa or idly materials. We try to avoid to use it continuously because of small motor it get heat so use 10 minutes and give 5 min. rest, remember when it get heated and do not start then push bottom red button two times(generally) and try to start after some time; Its light weight and medium size comes under good quality so you could always keep in your kitchen, now its 2yrs warranty has been finish but did not get any complain.