It always depends on what side the device is.
Devices having 2H or 2HP have 1W or 1,3W powerfull radios. if there is “n”, it has b/g/n (or a/n if they are 5Ghz only). If there is “D” it has dual chain radios. So, thinking about “2n” devices (especially with internal 1-2 dbi antennas) is not smart if you would like to use them in “client” role. Maybe they could be good in AP role, as you need to cover only small hotel room and you do not care about weak signal around.
Generally it does not matter what mikrotik device you use, because all can virtually do the same, just you need to have at least L4 licence.
According to my experience it is necessary to expect bad APs in hotels. In this case it would be very usefull if your client wlan could be equipped with panel antenna - to attenuate interference from all around, to get strong signal from AP and to have enough strong singnal received at hotel AP.
Also I would say you would never utilize gigabit ethernets in the hotel as their connection provided to clients is normally around few Mbits/s.
Having things stated above, I would look at some case that include panel antenna (2,4G) and put in whatever board with:
1- enough ethernets you need
2- two radios capable
One radio connect to internal panel antenna, for second radio put antenna(-s) directly on the box.
Or, if you are not against having two devices, I would suggest to use SXT2Lite as client and then e.g. RB951Ui-2HnD (just because it has one port with poe out so you can power the SXT2Lite directly) as router and AP. The total price would be around 100 USD if new devices used. But it is without gigabit ports…
PC Engines APU is quite expensive, taking into account you need a box, power adapter, flashdisk, radios, pigtails, antennas… also the time wasted on software installation and settings… Ugh. Does not seem to be real alternative for these purposes.