I visited here in April 2014 for my first visit ever to Jember, East Java. Me and my friends had a two night stay at this hotel because we were going to Tanjung Papuma and also Nusa Barong Island. I think this hotel might be the only 4 star hotel in town and it's fairly new. The building is very new and the room also looks decent and new.
I recommend people who want to visit the Jember City to stay at this hotel if you are willing to spend some more money than staying at some other hotels that might be cheaper than Aston Jember.
The location is greatly and strategically located within the city centre area. Afterall, Jember City is not that big anyway. So, if you are in town and you got a car to move around, you will be fine staying in this hotel.
It is also quite close to the city centre area which has a lot of good foods, like Mie Rama (our favourite).
The hotel lobby is awesome, just like any other 4 star hotel lobby.
This hotel also has a restaurant at lobby level and a restaurant and bar on about level 5 or 6 (I can't remember). On the bar level, you can also find an awesome looking swimming pool and a fitness centre with new looking equipments (took a peek inside but didn't try).
The only downside is it could get a bit noisy at night (in the weekends) if you get a room facing the bar and restaurant and swimming pool. And also somehow you could easily look into other rooms through the non-tinted windows (of course when the rooms are not closed with the curtains).
However, I had a great stay at this hotel. and my rating would be:
9/10