This is a GOOD hotel if...
-you are looking for a place close to the beach
-you don't mind walking 20-25 minutes to the old town (on a beautiful scenic promenade)
-you don't want to pay too much during high season
-you want parking

This hotel is NOT good if...
-you want a TV in your room
-you want to have your room smell fresh (not stuffy and like something wet was left)
-you want clean carpets
- you want anything that is updated or new
-you need a clock in the room

For us it was fine. We enjoy spending our days outside and only needed a place to sleep. We enjoyed the walk to the old town and being close to a less crowded beach area.

There is a nice bakery about 1 minute walk that we ate breakfast at every morning for a fraction of the cost that the hotel offered. It was very fresh and the employees very friendly.

Locarno is a very well located hotel. It's few minutes away from the promanade. The staff is very cooperative. The connectivity to the hotel is very good. It has many restaurants, grocery store and shops around. Rooms are so so.

My heart sank the minute I saw the interior. No - let's be accurate - it was the minute I told the taxi driver at the Airport where we were headed. There was a flicker of something in his eyes which was pity, sympathy or perhaps "serves you right for looking down on my Renault when all the other taxis are Mercs".
You come in through glass doors but you are not actually moving through physical space. You are travelling through a time portal. Your peripheral vision takes in tables from the 70's with paper napkins, then a reception desk from a Carry On film. In a moment or two you are in your room - in our case, a group of 3 attending the Monaco Grand Prix - and it really hits you. Your instinct is to get out, to flee, to return to 2011 - because you are in the 1960's. This is when the last refurb took place. The evidence is conclusive. There is a James Bond device in the wall which doubles as an alarm clock and a message retrieval system. Messages from M, circa 1967, presumably. Shaken, you check out the bathroom, where the original linoleum - I am not kidding - is cracked and filthy. The paintwork was last touched up when She Loves You was topping the Hit Parade.
There was some consolation in the SMERSH quality air con which did actually work, Mouhaha and the bed linen was clean enough as were the towels. If you looked at the boxes to see if they were ticked - as I did when booking this place - it looks fair enough - air con, good location, pricey (for Monaco weekend the hotel was 100% full and we were paying 165 Euros per night). In reality this is a shocking hotel and the well-dressed and civilised people who seem to flock to it need to stay in a UK Travelodge to catch a glimpse of the future.
Breakfast was available but I would not feed my dog in this hotel and we ate out for the 4 days of our stay. On the 5th night of our trip we moved to a beautiful place in Eze which is nearby.
If you visit this area during the Monaco Grand Prix weekend you have to be prepared to pay outrageous prices. In paid £90 in Monaco for a pizza and two bowls of pasta and the grandstand seats for the race days were thousands of Euros. BUT I anticipated this and the quality of the place and the event was commensurate with the price asked. The Locarno charges high prices and in exchange gives you 1960s standards.
What is said in other reviews about prostitutes hanging around the time portal (sorry, front door) is correct.

Me and my friend booked this hotel for one night only during our 8-day trip to the Riviera, and it turned out to be probably the worst night of our lives. After leaving the hotel in the evening, to go out to dinner and spend the rest of the Friday night at a nightclub near the hotel, we returned to Hotel Locarno -only to find out that the guy at the reception had given our room key to somebody else! We found two strangers coming out of our room with lots of our stuff. One of them assaulted my friend by scratching her in the face. The hotel staff did nothing to stop them, or help us, and they even gave the police a false statement about us knowing the robbers! We ended up spending the rest of the night at the hospital and police station. Obviously we did not want to pay for our stay, and the staff agreed to that. But when I got home I realized they still have charged my credit card by a sum greater than what we had agreed to pay in the first place (I had given my credit card information when making the booking for the hotel). A crime report has been made and we have been in contact with a lawyer and are considering pressing charges against the hotel for spoiling our vacation. Not only were we robbed and assaulted, the hotel staff was incredibly rude and tried to blame us for what happened! Thereby I strongly recommend no-one to stay here, the staff hands out room keys to anybody asking for them without checking their identity!