It looks to be a good spec and price to me. Should be OK for what you want.
I have had a Medion PC from Aldi for a couple of years and (without tempting providence) it has been the best of the many I have had over the years. Have undertaken various upgrades myself and found the fit and finish inside the "tower" to be exemplary.
Was a bit dubious about buying it in the first place, but it has given me no trouble, unlike many of the major brands I previously used.
Some posters to the PC Advisor Helproom have had problems with Medions and have complained of very poor customer backup. I cannot comment as have had no need to call on them.