Hello student. When it comes to coaching it is good. But when you are aiming for NEET, I would suggest fitjee ranchi or aakash is comparitively better

when taken individually without comparing with other institutes, then Allen ranchi is good, here it depends mostly on you, your hard work, preperation etc. More than on the institute. Institute takes efforts, but your efforts matter most

They provide you with needed materials and classes etc

Refer the link for NEET preperation

https://www.careers360.com/mbbs-companion?ici=companion-navigation-header_mbbs-companion&icn=mbbs-companion