Officially open. Marriott press release:

Panamania: W Debuts in Central America with Opening of W Panama | Marriott News Center

Excerpt:

"Located in one of the most cosmopolitan capitals in the region, Panama City, the new hotel towers above the heart of the business district within the ultra-modern, 50-floor Evolution Tower on Calle 50....The hotel is near Uruguay Street, known as the “Zona Rosa” of Panama, home to a bustling scene of trendy restaurants and nightclubs....Guests enter W Panama on the 15th floor of the striking new skyscraper and are immediately greeted by playfully modern design. W Panama transforms the industrial look of shipping containers, similar in look to those often found along the Panama Canal, with original graffiti painted by Diablos Rojos-inspired artist, Oscar Melgar. Throughout the hotel, five containers become destinations themselves, setting the scene for connecting and mingling. The shipping containers can be found in the hotel’s Living Room (the brand’s take on the traditional hotel lobby), the expansive, 6,835-square-foot WET Deck (pool deck) and Cargo, the destination bar housed within its own shipping container which serves up handcrafted cocktails year-round....With 203 guest rooms including 28 gorgeous suites, many featuring sweeping views of the nearby bay and Canal..."

Hotel website:

Hotels in Panama | W Panama

Also looks like there might be some opening specials; 3 listed.

Cheers.