If you're in the market for a new phone with decent specs and battery life this might be a good option.
Link to deal page here.
€30pm x 24months = €720
€720 - €430 (Outright Amazon) = €290
€290 / 24months = €12.08pm
Therefore comparable price to buying outright and going with a GoMo sim.
No headphone jack
No stabilisation in 4K video (1080p has stabilisation)
No SD slot (surely 128GB is enough for a phone?)
Plan is only 500/500/15GB : call/text/data
EDIT: iPhone 8 also on offer for €99 upfront. May be of interest to some.