diff --git a/src/lib/services/generic.service.ts b/src/lib/services/generic.service.ts
index a3ca738..95014bf 100644
--- a/src/lib/services/generic.service.ts
+++ b/src/lib/services/generic.service.ts
@@ -23,7 +23,7 @@ export interface QueryParam {
  */
 export abstract class GenericService<I> {
     protected readonly _http = this._injector.get(HttpClient);
-    private readonly _lastCheckedForChanges = new Map<string, string>([[ROOT_CHANGES_KEY, '0']]);
+    protected readonly _lastCheckedForChanges = new Map<string, string>([[ROOT_CHANGES_KEY, '0']]);
 
     protected constructor(protected readonly _injector: Injector, protected readonly _defaultModelPath: string) {}
 
diff --git a/src/lib/services/stats.service.ts b/src/lib/services/stats.service.ts
index 3be767c..c260d67 100644
--- a/src/lib/services/stats.service.ts
+++ b/src/lib/services/stats.service.ts
@@ -4,6 +4,7 @@ import { HttpClient } from '@angular/common/http';
 import { tap } from 'rxjs/operators';
 import { HeadersConfiguration, mapEach, RequiredParam, Validate } from '../utils';
 
+/* WIP, not used */
 @Injectable()
 export abstract class StatsService<E, I = E> {
     private readonly _http = this._injector.get(HttpClient);
diff --git a/src/lib/utils/functions.ts b/src/lib/utils/functions.ts
index 4321cf6..302c4d7 100644
--- a/src/lib/utils/functions.ts
+++ b/src/lib/utils/functions.ts
@@ -1,6 +1,7 @@
 import { tap } from 'rxjs/operators';
 import { ITrackable } from '../listing/models/trackable';
 import { MonoTypeOperatorFunction } from 'rxjs';
+import moment from 'moment';
 
 export function capitalize(value: string): string {
     if (!value) {
@@ -19,7 +20,7 @@ export function humanize(value: string, lowercase = true): string {
 }
 
 export function log<T>(): MonoTypeOperatorFunction<T> {
-    return tap<T>(res => console.log(res));
+    return tap<T>(res => console.log(`%c[${moment().format('HH:mm:ss.SSS')}]`, 'color: yellow;', res));
 }
 
 export function toNumber(str: string): number {