One of my friends studied at IET and his experience was really good. Thus, I have a clear idea about IET and would suggest you opt for IET because of the reasons below. 

• IET Lucknow enrolls students by UPSEE and this ensures the quality of students every time. UPSEE ensures a better peer on the college campus.
• IET Lucknow will provide you with opportunities to prepare for higher education. There are a lot of coaching centers in the vicinity. 
• The placement record of IET is also decent. According to the recent placement highlights the median CTC offered at the institute is 5 LPA. 

IET Lucknow is the best option for students who are really keen to invest their time in their studies. It would be better to not go for the infrastructure and physical appearance, try to understand what institute provides better education. Do your own research, and choose wisely.