Hi Daw35y,
Firstly i'd like to say I personally don't have any implants.
Importantly you must consider that any dental restoration can not be regarded as permanent, even implants.
However it is a fact that assuming an individual is suitable for implants that they provide the longest lasting restoration currently though to be over 20 years and perhaps much longer.
Implants do need to be maintained abnd cleaned like ordinary teeth, but assuming you don't smoke their maintenance is easier than most other dental restorations.
They are however costly, but if you are able to afford them now, then you will save money long term, because other restorations will require more frequent placement.
If you have any further questions please ask.