Was tough, harder than I expected. Hiking from sea level up to 900+ m would be fine, but last 250 m of height was in snow (June 7).
Trail was 1 to 2 meters below the snow so it did not help too much :-). In some areas it was so steep that I grabbed two sticks and using them and boots climbed like an icy slope with crampons. But slope just opened a vast space below with fiords, gently mountains and lakes. Top was partially without snow. Altogether there and back it took me 5 hours.
Result: I have to buy new shoes, I just damaged old ones.
But vistas were amazing. Judge yourself.
In July it will be a wonderful walk and you do not need to sacrify your shoes :-).