The world’s largest fast-food chain on Tuesday reported stellar quarterly results, which included a much-better-than expected 3.9% increase in sales at established U.S. restaurants, numbers that were bolstered by McDonald’s $1 soda promotion and the introduction of crafted burgers.

Elsewhere, McDonald’s did well too: global same-store sales, which gauge business at restaurants open at least 13 months, rose 6.6%, their best performance in five years, and easily outpaced the 4% expected by analysts, according to research firm Consensus Metrix. In U.S., they had been expecting a 3.2% bump.

McDonald’s shares jumped 3% in early trading, bringing them close to recently-hit all-time highs.

The strong results show that the efforts of CEO Steve Easterbrook to overhaul the company’s business, including its menu and in-store operations, are taking hold two years into a turnaround. McDonald’s has been grappling with sometimes weak store traffic so it’s taken steps such as tapping Uber for some delivery services and letting customers order ahead of time with mobile apps. It’s also introduced in-store ordering kiosks in an effort to appease customers who’ve been turned off in the past by long, slow-moving lines.

And tweaks to its core offerings have been key to its renaissance: last year, sales boomed thanks to its all-day breakfast play. And in the second quarter, it got a boost from $1 sodas and new “Signature Crafted” burgers—items geared at attracting customers in the short term. McDonald’s has tested everything from kale salads to cooked-to-order Quarter Pounders in recent years as it’s sought to maintain its newfound momentum.

In addition to the $1 soft drinks of all sizes it introduced in April, McDonald’s is also selling McCafé beverages—frappes, smoothies, espresso drinks—for $2 (for a limited time) to generate interest and drum up store visits.

“We’re building a better McDonald’s and more customers are noticing,” Easterbrook said in a statement.

Net income rose to $1.40 billion, or $1.70 per share, in the quarter ended June 30, from $1.09 billion, or $1.25 per share, a year earlier. Revenue fell 3.4% to $6.05 billion from $6.27 billion, as more stores were franchised, but it still beat the average analyst estimate of $5.96 billion, according to Thomson Reuters I/B/E/S.