Personal experience seems to be the only way to discuss dissolution.
Having experienced 'dissolution' on numerous occasions on BV retreat's, I can offer the following personal
a) It can be a very unsettling experience (not always).
b) It is achieved by a repeatable process that relies on specific conditions regarding environment, philosophical teachings and meditative techniques.
c) Depending on one's personal understanding of the Buddha Dhamma one can achieve an experience of non-self (which in itself is just a perception and not very extraordinary unless one can sustain such perception)
d) Except for the perception of non-self, few of the experiences I personally experienced, or were intimated that might be experienced can actually be aligned with the Buddha's Dhamma.
e) Having also been a Tibetan Buddhist student for many years I came to realise that in some ways the BV is a stripped down version of chakra/tantra techniques which aim at developing and experiencing or manipulating sensations/energies within the body.
f) If dissolution is what you want to experience then the BV traditions are to be recommended, if you want to experience vipassana within the framework that the Buddha taught then I would advise people look to the jhana's(body aware) or at least sit down to meditate with the desire & intention to experience a certain amount of joy based upon seclusion.