Yes , amaravati has apt timings for RF in that section..but coach maintenance not up to the mark.
When I went last year..many people debaorded at kulem and were trekking towards dudh sagar...even girls(even though swr has deemed it illegal)
They said in the return we will catch amaravati from waterfall up to mao
Amaravati is not a good train Bhai. 2 years back I travelled from VSG to LD in SL coach, maintenance was okay it was a new coach but rush was too much more than 100 passengers also the toilets were blocked by the luggage of passengers.
Regarding Mangala and Goa express my experience is Goa is the better one. I travelled in 2014 in Goa express from VSG to NZM and Mangala from NZM to MAO. My journey is Goa was great my SL coach had around 75 to 80 passengers but I got a comfortable SL berth it was a great RFing and sight seeing experience also the train arrived NZM only about 15 minutes late that too because it...
more... crawled all the way from TKD to NZM otherwise BT arrival was expected.
Return journey in Mangala from NZM to MAO was horrible in SL coach too much wait list and even UR passengers occupying my seat. Coach maintenance worse than Goa it was delayed by around one hour before ET. Recoverd some delay till Panvel but KR heavily trolled it and reeached MAO more than 2 hours late. In KR section I never felt like I was in a SF train as it was stranded 6 to 7 places for crossings.
Haan, amaravati me rush to bahut rehta hai chaahe SL ho ya 3a
Yesterday night great race between Goa and TN. First TN overtook Goa in BPL JHS section than Goa again reovertook TN in GWL AGC section also bonus overtake of Mewar for Goa at Kosi Kakan I think.