There is no difference in the benefit that can be received by practicing sadhana bhakti. His instructions remain the same for all spiritual aspirants, thus the daily practice that we have to do remains the same. For those who practice sadhana bhakti everyday as prescribed by Shree Maharaj Ji, they can receive the very same benefit that they could when he was physically present here, and they can progress just as swiftly as they could when he was physically here.
In addition, we have thousands of his speeches recorded on audio and video, as well as many books he has written. These are more than enough to guide us and provide knowledge, clear doubts, and answer our questions. All we have to do is take the time to study these available resources.
For meditation purposes, we have thousands of kirtan which were revealed by Shree Maharaj Ji that describe the names, forms, leelas, virtues, and abodes of Shree Radha Krishna. We also have recordings of these kirtan being sung in the voice of Shree Maharaj Ji.
Thus, for all intents and purposes, we are presented with the very same opportunity to progress on the path of bhakti as we were when Shree Maharaj Ji was physically present. The rest is up to us. If we avail ourselves of this opportunity, then we will personally experience the grace of Radha Krishna in our life and we will realize that we have not been deprived of anything.
Thank you very much